Post by Dave Mitsky on Jun 2, 2015 6:37:03 GMT
June Celestial Calendar by Dave Mitsky
All times, unless otherwise noted, are UT (subtract four hours and, when appropriate, one calendar day for EDT)
6/1 Saturn is 1.9 degrees south of the Moon at 20:00
6/2 Mercury is at aphelion today; Full Moon (known as the Flower, Rose or Strawberry Moon), occurs at 16:19
6/4 A double Galilean satellite shadow transit begins at 4:58
6/6 Venus is at greatest eastern elongation (45.4 degrees) at 18:00; asteroid 1 Ceres is stationary at 22:00
6/9 Neptune is 3 degrees south of the Moon at 3:00; Last Quarter Moon occurs at 15:42
6/10 The Moon is at perigee, subtending 32' 17" from a distance of 369,711 kilometers (229,728 miles), at 5:00; the Curtiss Cross, an X-shaped illumination effect located between the craters Parry and Gambart, is predicted to occur at 18:30
6/11 Uranus is 0.5 degree north of the Moon, with an occultation occurring in French Polynesia, Samoa, Fiji, New Zealand, and southern and eastern Australia, at 20:00; Mercury is stationary at 20:00
6/12 Asteroid 2 Pallas (magnitude 8.6) is at opposition at 1:00; Neptune is stationary at 20:00
6/14 The earliest sunrise of the year at latitude 40 degrees north occurs today; Mars is in conjunction with the Sun at 16:00
6/15 Mercury is 0.04 degree north of the Moon, with an occultation occurring in Micronesia, most of southeast Asia, Sri Lanka, and southernmost India, a at 2:00; the Moon is 1 degree north of the first-magnitude star Aldebaran (Alpha Tauri), with an occultation occurring in northern and central Russia, northern Scandinavia, Iceland, Greenland, and northern and eastern Canada, at 12:00
6/16 New Moon (lunation 1144) occurs at 14:05
6/17 The earliest morning twilight of the year at latitude 40 degrees north occurs today
6/20 Venus is 6 degrees north of the Moon at 11:00
6/21 Jupiter is 5 degrees north of the Moon at 0:00; summer solstice in the northern hemisphere occurs at 16:38
6/23 Mercury is at its greatest heliocentric latitude south today; the Moon is at apogee, subtending 29' 38" from a distance of 404,132 kilometers (251,116 miles), at 17:00
6/24 The latest evening twilight of the year at latitude 40 degrees north occurs today; the Purbach Cross or Lunar X, an X-shaped illumination effect involving various rims and ridges between the craters La Caille, Blanchinus, and Purbach, is predicted to occur at 2:40; Mercury is 2 degrees north of Aldebaran at 8:00; First Quarter Moon occurs at 11:03; Mercury is at greatest western elongation (22.5 degrees) at 17:00
6/27 The latest sunset of the year at latitude 40 degrees north occurs today
6/29 Saturn is 2 degrees south of the Moon, at 1:00
6/30 Venus and Jupiter are within 18 arc minutes of each other today
Giovanni Cassini (1625-1712), Charles Messier (1730-1817), and George Ellery Hale (1868-1938) were born this month.
The usually minor June Boötid meteor shower peaks on the morning of June 27th. June Boötids are the slowest of all meteors, travelling at 18 kilometers (11 miles) per second. A dark window begins at approximately 2:00 a.m. local daylight time when the waxing crescent Moon sets.
Information on Iridium flares and passes of the ISS, the Tiangong-1, the USAF’s X-37B, the HST, and other satellites can be found at www.heavens-above.com/
The Moon is 13.8 days old, is illuminated 97.0%, and is located in Libra on June 1st at 0:00 UT. The Moon is at its greatest northern declination of +18.5 degrees on June 16th and at its greatest southern declination of -18.4 degrees on June 3rd. Longitudinal libration is at a maximum of +5.0 degrees on June 17th and a minimum of -5.2 degrees on June 2nd and -5.8 degrees on June 29th. Latitudinal libration is at a maximum of +6.5 degrees on June 17th and a minimum of -6.6 degrees on June 4th. The Moon passes one degree north of Aldebaran on June 15th. The waxing gibbous Moon will occult the fourth-magnitude star Theta Librae for observers in eastern North America on the evening of June 28th. For further information on this event, consult page 53 of the June issue of Sky & Telescope. See www.lunar-occultations.com/iota/iotandx.htm for information on lunar occultations taking place this month. Visit saberdoesthestars.wordpress.com/2011/07/05/saber-does-the-stars/ for tips on spotting extreme crescent Moons. Times and dates for the lunar light rays predicted to occur this month are available at www.lunar-occultations.com/rlo/rays/rays.htm
The Sun is located in Taurus on June 1. The Sun reaches its farthest position north for the year on June 21st. There are 15 hours of daylight at latitude 40 degrees north on the day of the summer solstice.
Brightness, apparent size, illumination, distance from the Earth in astronomical units, and location data for the planets and Pluto on June 1: Mercury (not visible, 12.2", 0% illuminated, 0.55 a.u., Taurus), Venus (magnitude -4.4, 22.1", 53% illuminated, 0.76 a.u., Gemini), Mars (magnitude +1.5, 3.7", 100% illuminated, 2.55 a.u., Taurus), Jupiter (magnitude -1.9, 34.6", 99% illuminated, 5.69 a.u., Gemini), Saturn (magnitude +0.1, 18.5", 100% illuminated, 8.98 a.u., Libra), Uranus on June 16th (magnitude +5.9, 3.5", 100% illuminated, 20.41 a.u., Pisces), Neptune on June 16th (magnitude +7.9, 2.3", 100% illuminated, 29.69 a.u., Aquarius) and Pluto on June 16th (magnitude +14.1, 0.1", 100% illuminated, 31.94 a.u., Sagittarius).
Venus and Jupiter are in the west and Saturn is in the southeast in the evening sky. At midnight, Saturn lies in the south. Mercury can be found in the northeast, Uranus in the east, and Neptune in the southeast at dawn.
At midmonth, Mercury is visible in morning twilight, Venus sets at 11:00 p.m. local daylight time, Jupiter sets at midnight, and Saturn transits the meridian at 11:00 p.m. local daylight time and sets at 4:00 a.m. local daylight time for observers at latitude 40 degrees north.
Mercury is at aphelion on June 2nd and is stationary on June 11th. The Moon occults Mercury on June 15th from Micronesia and southern Asia. Mercury is at its greatest heliocentric latitude south on June 23rd. The speediest planet passes two degrees north of Aldebaran and is at greatest western elongation on June 24th.
Venus continues to grow in apparent size (22.1 to 31.8 arc seconds) but shrinks in illumination (53 to 35%) this month. As June begins, it sets about 3.5 hours after the Sun. Venus departs Gemini and enters Cancer on June 3rd. It will achieve dichotomy (50% illumination) on June 5th. Venus reaches greatest eastern elongation on June 6th. On June 12th and June 13th, it passes less than one degree north of the open cluster M44 (the Beehive Cluster or Praesepe). The brightest planet is located six degrees north of the Moon on the morning of June 20th. It crosses into Leo on June 25th. Venus and Jupiter are separated by twenty degrees as June begins but are less than one third of a degree apart by June 30th. The two planets display nearly the same apparent diameter on that date but Venus is some 13 times brighter. This extremely close conjunction is the first and the best of three to occur this year. Venus and Jupiter lie within two degrees of each other for eight evenings in late June and early July.
Mars is in conjunction with the Sun on June 14th and is consequently not visible this month. It enters the constellation on Gemini on June 25th.
The gas giant Jupiter disappears into the glare of evening twilight by the end of June. A mutual event involving Ganymede and Io is visible from the eastern half of North America on the evening of June 3rd. Io is partially eclipsed by Ganymede for a total of 28 minutes beginning at 9:43 p.m. EDT. A double Galilean satellite shadow transit involving Io and Ganymede begins at 12:58 a.m. EDT on June 4th. Jupiter exits Cancer and enters Leo on June 9th. On June 21st, Jupiter passes five degrees north of the Moon. Browse www.skyandtelescope.com/observing/interactive-sky-watching-tools/ or www.projectpluto.com/jeve_grs.htm in order to determine transit times of Jupiter’s central meridian by the Great Red Spot. GRS transit times are also available on page 53 of the June issue of Sky & Telescope. Javascript Jupiter at www.shallowsky.com/jupiter/ shows Galilean satellite events, along with GRS transits. Data on the Galilean satellite events can also be found at www.skyandtelescope.com/observing/interactive-sky-watching-tools/ and on page 53 of the June issue of Sky & Telescope.
At midmonth, Saturn shines at magnitude 0.1 and spans 18.4 arc seconds as it retrogrades in Libra. Its rings subtend 42 arc seconds and are inclined by 24 degrees. Saturn passes with two arc minutes of a seventh-magnitude field star on June 23rd and June 24th. Saturn’s peculiar satellite Iapetus shines at tenth magnitude when it is situated north of the planet on June 7th through June 9th and at eleventh magnitude as it approaches greatest eastern elongation on June 28th. For more on Saturn’s satellites, browse www.skyandtelescope.com/observing/interactive-sky-watching-tools/
During June, Uranus lies within one degree of the fifth-magnitude star Zeta Piscium. On June 18th, Uranus passes one half degree south of that star. Uranus is one half of a degree north of the Moon on June 11th, with an occultation taking place in the south Pacific and part of Australia.
Neptune is located two degrees southwest of the fourth-magnitude star Lambda Aquarii. It rises after midnight. Neptune is 3 degrees south of the Moon on the night of June 8th. Neptune begins retrograde motion on June 12th.
Finder charts for Uranus and Neptune can be found at www.nakedeyeplanets.com/uranus.htm and www.nakedeyeplanets.com/neptune.htm
Pluto lies in northern Sagittarius, about one half of a degree north of the fifth-magnitude star Xi1 Sagittarii. A finder chart is available on pages 50 and 51 of the June issue of Sky & Telescope and at www.bluewaterastronomy.info/resources/MapsCharts/planets-2015/22pluto_2015_1.pdf
For more on the planets and how to locate them, browse www.nakedeyeplanets.com/
Comet C/2013 US10 (Catalina) may reach eighth or ninth magnitude as it passes southward through Sculptor in June. Comet C/2014 Q2 (Lovejoy) has maintained its brightness to a remarkable degree. Click on freestarcharts.com/images/Articles/Month/May2015/Comet_Lovejoy/C2014_Q2_Lovejoy_May15_Finder_Chart.pdf for a finder chart showing the position of Comet Lovejoy in early June. Visit cometchasing.skyhound.com/ and www.aerith.net/comet/future-n.html for additional information on this and other comets visible during June.
Asteroid 2 Pallas glides westward through the constellation of Hercules this month. The large main-belt asteroid shines at magnitude 8.6 when it reaches opposition on the evening of June 11th. It’s positioned less than one degree southeast of the fourth-magnitude star Lambda Herculis on that date. 2 Pallas passes 33 arc minutes south of Lambda Herculis on the following three nights. On June 30th, it lies some 26 arc minutes east of the third-magnitude star Delta Herculis. Other asteroids eleventh magnitude or brighter reaching opposition this month include 72 Feronia (June 8th), 51 Nemausa (June 9th), 92 Undina (June 16th), and 32 Pomona (June 18th). Information on asteroid occultations taking place this month is available at www.asteroidoccultation.com/2015_06_si.htm
A wealth of current information on solar system celestial bodies is posted at www.curtrenz.com/astronomical.html and nineplanets.org/
Free star maps for June can be downloaded at www.skymaps.com/downloads.html and www.telescope.com/content.jsp?pageName=Monthly-Star-Chart
Forty binary and multiple stars for June: Struve 1812, Kappa Bootis, Otto Struve 279, Iota Bootis, Struve 1825, Struve 1835, Pi Bootis, Epsilon Bootis, Struve 1889, 39 Bootis, Xi Bootis, Struve 1910, Delta Bootis, Mu Bootis (Bootes); Struve 1803 (Canes Venatici); Struve 1932, Struve 1964, Zeta Coronae Borealis, Struve 1973, Otto Struve 302 (Corona Borealis); Struve 1927, Struve 1984, Struve 2054, Eta Draconis, 17-16 Draconis, 17 Draconis (Draco); 54 Hydrae (Hydra); Struve 1919, 5 Serpentis, 6 Serpentis, Struve 1950, Delta Serpentis, Otto Struve 300, Beta Serpentis, Struve 1985 (Serpens Caput); Struve 1831 (Ursa Major); Pi-1 Ursae Minoris (Ursa Minor); Struve 1802, Struve 1833, Phi Virginis (Virgo)
Notable carbon star for June: V Coronae Borealis
Fifty deep-sky objects for June: NGC 5466, NGC 5676, NGC 5689 (Bootes); M102 (NGC 5866), NGC 5678, NGC 5879, NGC 5905, NGC 5907, NGC 5908, NGC 5949, NGC 5963, NGC 5965, NGC 5982, NGC 5985, NGC 6015 (Draco); NGC 5694 (Hydra); NGC 5728, NGC 5791, NGC 5796, NGC 5812, NGC 5861, NGC 5878, NGC 5897 (Libra); M5, NGC 5921, NGC 5957, NGC 5962, NGC 5970, NGC 5984 (Serpens Caput); M101, NGC 5473, NGC 5474, NGC 5485, NGC 5585, NGC 5631 (Ursa Major); NGC 5566, NGC 5634, NGC 5701, NGC 5713, NGC 5746, NGC 5750, NGC 5775, NGC 5806, NGC 5813, NGC 5831, NGC 5838, NGC 5846, NGC 5850, NGC 5854, NGC 5864 (Virgo)
Top ten deep-sky objects for June: M5, M101, M102, NGC 5566, NGC 5585, NGC 5689, NGC 5746, NGC 5813, NGC 5838, NGC 5907
Top five deep-sky binocular objects for June: M5, M101, M102, NGC 5466, NGC 5907
Challenge deep-sky object for June: Abell 2065
The objects listed above are located between 14:00 and 16:00 hours of right ascension.
All times, unless otherwise noted, are UT (subtract four hours and, when appropriate, one calendar day for EDT)
6/1 Saturn is 1.9 degrees south of the Moon at 20:00
6/2 Mercury is at aphelion today; Full Moon (known as the Flower, Rose or Strawberry Moon), occurs at 16:19
6/4 A double Galilean satellite shadow transit begins at 4:58
6/6 Venus is at greatest eastern elongation (45.4 degrees) at 18:00; asteroid 1 Ceres is stationary at 22:00
6/9 Neptune is 3 degrees south of the Moon at 3:00; Last Quarter Moon occurs at 15:42
6/10 The Moon is at perigee, subtending 32' 17" from a distance of 369,711 kilometers (229,728 miles), at 5:00; the Curtiss Cross, an X-shaped illumination effect located between the craters Parry and Gambart, is predicted to occur at 18:30
6/11 Uranus is 0.5 degree north of the Moon, with an occultation occurring in French Polynesia, Samoa, Fiji, New Zealand, and southern and eastern Australia, at 20:00; Mercury is stationary at 20:00
6/12 Asteroid 2 Pallas (magnitude 8.6) is at opposition at 1:00; Neptune is stationary at 20:00
6/14 The earliest sunrise of the year at latitude 40 degrees north occurs today; Mars is in conjunction with the Sun at 16:00
6/15 Mercury is 0.04 degree north of the Moon, with an occultation occurring in Micronesia, most of southeast Asia, Sri Lanka, and southernmost India, a at 2:00; the Moon is 1 degree north of the first-magnitude star Aldebaran (Alpha Tauri), with an occultation occurring in northern and central Russia, northern Scandinavia, Iceland, Greenland, and northern and eastern Canada, at 12:00
6/16 New Moon (lunation 1144) occurs at 14:05
6/17 The earliest morning twilight of the year at latitude 40 degrees north occurs today
6/20 Venus is 6 degrees north of the Moon at 11:00
6/21 Jupiter is 5 degrees north of the Moon at 0:00; summer solstice in the northern hemisphere occurs at 16:38
6/23 Mercury is at its greatest heliocentric latitude south today; the Moon is at apogee, subtending 29' 38" from a distance of 404,132 kilometers (251,116 miles), at 17:00
6/24 The latest evening twilight of the year at latitude 40 degrees north occurs today; the Purbach Cross or Lunar X, an X-shaped illumination effect involving various rims and ridges between the craters La Caille, Blanchinus, and Purbach, is predicted to occur at 2:40; Mercury is 2 degrees north of Aldebaran at 8:00; First Quarter Moon occurs at 11:03; Mercury is at greatest western elongation (22.5 degrees) at 17:00
6/27 The latest sunset of the year at latitude 40 degrees north occurs today
6/29 Saturn is 2 degrees south of the Moon, at 1:00
6/30 Venus and Jupiter are within 18 arc minutes of each other today
Giovanni Cassini (1625-1712), Charles Messier (1730-1817), and George Ellery Hale (1868-1938) were born this month.
The usually minor June Boötid meteor shower peaks on the morning of June 27th. June Boötids are the slowest of all meteors, travelling at 18 kilometers (11 miles) per second. A dark window begins at approximately 2:00 a.m. local daylight time when the waxing crescent Moon sets.
Information on Iridium flares and passes of the ISS, the Tiangong-1, the USAF’s X-37B, the HST, and other satellites can be found at www.heavens-above.com/
The Moon is 13.8 days old, is illuminated 97.0%, and is located in Libra on June 1st at 0:00 UT. The Moon is at its greatest northern declination of +18.5 degrees on June 16th and at its greatest southern declination of -18.4 degrees on June 3rd. Longitudinal libration is at a maximum of +5.0 degrees on June 17th and a minimum of -5.2 degrees on June 2nd and -5.8 degrees on June 29th. Latitudinal libration is at a maximum of +6.5 degrees on June 17th and a minimum of -6.6 degrees on June 4th. The Moon passes one degree north of Aldebaran on June 15th. The waxing gibbous Moon will occult the fourth-magnitude star Theta Librae for observers in eastern North America on the evening of June 28th. For further information on this event, consult page 53 of the June issue of Sky & Telescope. See www.lunar-occultations.com/iota/iotandx.htm for information on lunar occultations taking place this month. Visit saberdoesthestars.wordpress.com/2011/07/05/saber-does-the-stars/ for tips on spotting extreme crescent Moons. Times and dates for the lunar light rays predicted to occur this month are available at www.lunar-occultations.com/rlo/rays/rays.htm
The Sun is located in Taurus on June 1. The Sun reaches its farthest position north for the year on June 21st. There are 15 hours of daylight at latitude 40 degrees north on the day of the summer solstice.
Brightness, apparent size, illumination, distance from the Earth in astronomical units, and location data for the planets and Pluto on June 1: Mercury (not visible, 12.2", 0% illuminated, 0.55 a.u., Taurus), Venus (magnitude -4.4, 22.1", 53% illuminated, 0.76 a.u., Gemini), Mars (magnitude +1.5, 3.7", 100% illuminated, 2.55 a.u., Taurus), Jupiter (magnitude -1.9, 34.6", 99% illuminated, 5.69 a.u., Gemini), Saturn (magnitude +0.1, 18.5", 100% illuminated, 8.98 a.u., Libra), Uranus on June 16th (magnitude +5.9, 3.5", 100% illuminated, 20.41 a.u., Pisces), Neptune on June 16th (magnitude +7.9, 2.3", 100% illuminated, 29.69 a.u., Aquarius) and Pluto on June 16th (magnitude +14.1, 0.1", 100% illuminated, 31.94 a.u., Sagittarius).
Venus and Jupiter are in the west and Saturn is in the southeast in the evening sky. At midnight, Saturn lies in the south. Mercury can be found in the northeast, Uranus in the east, and Neptune in the southeast at dawn.
At midmonth, Mercury is visible in morning twilight, Venus sets at 11:00 p.m. local daylight time, Jupiter sets at midnight, and Saturn transits the meridian at 11:00 p.m. local daylight time and sets at 4:00 a.m. local daylight time for observers at latitude 40 degrees north.
Mercury is at aphelion on June 2nd and is stationary on June 11th. The Moon occults Mercury on June 15th from Micronesia and southern Asia. Mercury is at its greatest heliocentric latitude south on June 23rd. The speediest planet passes two degrees north of Aldebaran and is at greatest western elongation on June 24th.
Venus continues to grow in apparent size (22.1 to 31.8 arc seconds) but shrinks in illumination (53 to 35%) this month. As June begins, it sets about 3.5 hours after the Sun. Venus departs Gemini and enters Cancer on June 3rd. It will achieve dichotomy (50% illumination) on June 5th. Venus reaches greatest eastern elongation on June 6th. On June 12th and June 13th, it passes less than one degree north of the open cluster M44 (the Beehive Cluster or Praesepe). The brightest planet is located six degrees north of the Moon on the morning of June 20th. It crosses into Leo on June 25th. Venus and Jupiter are separated by twenty degrees as June begins but are less than one third of a degree apart by June 30th. The two planets display nearly the same apparent diameter on that date but Venus is some 13 times brighter. This extremely close conjunction is the first and the best of three to occur this year. Venus and Jupiter lie within two degrees of each other for eight evenings in late June and early July.
Mars is in conjunction with the Sun on June 14th and is consequently not visible this month. It enters the constellation on Gemini on June 25th.
The gas giant Jupiter disappears into the glare of evening twilight by the end of June. A mutual event involving Ganymede and Io is visible from the eastern half of North America on the evening of June 3rd. Io is partially eclipsed by Ganymede for a total of 28 minutes beginning at 9:43 p.m. EDT. A double Galilean satellite shadow transit involving Io and Ganymede begins at 12:58 a.m. EDT on June 4th. Jupiter exits Cancer and enters Leo on June 9th. On June 21st, Jupiter passes five degrees north of the Moon. Browse www.skyandtelescope.com/observing/interactive-sky-watching-tools/ or www.projectpluto.com/jeve_grs.htm in order to determine transit times of Jupiter’s central meridian by the Great Red Spot. GRS transit times are also available on page 53 of the June issue of Sky & Telescope. Javascript Jupiter at www.shallowsky.com/jupiter/ shows Galilean satellite events, along with GRS transits. Data on the Galilean satellite events can also be found at www.skyandtelescope.com/observing/interactive-sky-watching-tools/ and on page 53 of the June issue of Sky & Telescope.
At midmonth, Saturn shines at magnitude 0.1 and spans 18.4 arc seconds as it retrogrades in Libra. Its rings subtend 42 arc seconds and are inclined by 24 degrees. Saturn passes with two arc minutes of a seventh-magnitude field star on June 23rd and June 24th. Saturn’s peculiar satellite Iapetus shines at tenth magnitude when it is situated north of the planet on June 7th through June 9th and at eleventh magnitude as it approaches greatest eastern elongation on June 28th. For more on Saturn’s satellites, browse www.skyandtelescope.com/observing/interactive-sky-watching-tools/
During June, Uranus lies within one degree of the fifth-magnitude star Zeta Piscium. On June 18th, Uranus passes one half degree south of that star. Uranus is one half of a degree north of the Moon on June 11th, with an occultation taking place in the south Pacific and part of Australia.
Neptune is located two degrees southwest of the fourth-magnitude star Lambda Aquarii. It rises after midnight. Neptune is 3 degrees south of the Moon on the night of June 8th. Neptune begins retrograde motion on June 12th.
Finder charts for Uranus and Neptune can be found at www.nakedeyeplanets.com/uranus.htm and www.nakedeyeplanets.com/neptune.htm
Pluto lies in northern Sagittarius, about one half of a degree north of the fifth-magnitude star Xi1 Sagittarii. A finder chart is available on pages 50 and 51 of the June issue of Sky & Telescope and at www.bluewaterastronomy.info/resources/MapsCharts/planets-2015/22pluto_2015_1.pdf
For more on the planets and how to locate them, browse www.nakedeyeplanets.com/
Comet C/2013 US10 (Catalina) may reach eighth or ninth magnitude as it passes southward through Sculptor in June. Comet C/2014 Q2 (Lovejoy) has maintained its brightness to a remarkable degree. Click on freestarcharts.com/images/Articles/Month/May2015/Comet_Lovejoy/C2014_Q2_Lovejoy_May15_Finder_Chart.pdf for a finder chart showing the position of Comet Lovejoy in early June. Visit cometchasing.skyhound.com/ and www.aerith.net/comet/future-n.html for additional information on this and other comets visible during June.
Asteroid 2 Pallas glides westward through the constellation of Hercules this month. The large main-belt asteroid shines at magnitude 8.6 when it reaches opposition on the evening of June 11th. It’s positioned less than one degree southeast of the fourth-magnitude star Lambda Herculis on that date. 2 Pallas passes 33 arc minutes south of Lambda Herculis on the following three nights. On June 30th, it lies some 26 arc minutes east of the third-magnitude star Delta Herculis. Other asteroids eleventh magnitude or brighter reaching opposition this month include 72 Feronia (June 8th), 51 Nemausa (June 9th), 92 Undina (June 16th), and 32 Pomona (June 18th). Information on asteroid occultations taking place this month is available at www.asteroidoccultation.com/2015_06_si.htm
A wealth of current information on solar system celestial bodies is posted at www.curtrenz.com/astronomical.html and nineplanets.org/
Free star maps for June can be downloaded at www.skymaps.com/downloads.html and www.telescope.com/content.jsp?pageName=Monthly-Star-Chart
Forty binary and multiple stars for June: Struve 1812, Kappa Bootis, Otto Struve 279, Iota Bootis, Struve 1825, Struve 1835, Pi Bootis, Epsilon Bootis, Struve 1889, 39 Bootis, Xi Bootis, Struve 1910, Delta Bootis, Mu Bootis (Bootes); Struve 1803 (Canes Venatici); Struve 1932, Struve 1964, Zeta Coronae Borealis, Struve 1973, Otto Struve 302 (Corona Borealis); Struve 1927, Struve 1984, Struve 2054, Eta Draconis, 17-16 Draconis, 17 Draconis (Draco); 54 Hydrae (Hydra); Struve 1919, 5 Serpentis, 6 Serpentis, Struve 1950, Delta Serpentis, Otto Struve 300, Beta Serpentis, Struve 1985 (Serpens Caput); Struve 1831 (Ursa Major); Pi-1 Ursae Minoris (Ursa Minor); Struve 1802, Struve 1833, Phi Virginis (Virgo)
Notable carbon star for June: V Coronae Borealis
Fifty deep-sky objects for June: NGC 5466, NGC 5676, NGC 5689 (Bootes); M102 (NGC 5866), NGC 5678, NGC 5879, NGC 5905, NGC 5907, NGC 5908, NGC 5949, NGC 5963, NGC 5965, NGC 5982, NGC 5985, NGC 6015 (Draco); NGC 5694 (Hydra); NGC 5728, NGC 5791, NGC 5796, NGC 5812, NGC 5861, NGC 5878, NGC 5897 (Libra); M5, NGC 5921, NGC 5957, NGC 5962, NGC 5970, NGC 5984 (Serpens Caput); M101, NGC 5473, NGC 5474, NGC 5485, NGC 5585, NGC 5631 (Ursa Major); NGC 5566, NGC 5634, NGC 5701, NGC 5713, NGC 5746, NGC 5750, NGC 5775, NGC 5806, NGC 5813, NGC 5831, NGC 5838, NGC 5846, NGC 5850, NGC 5854, NGC 5864 (Virgo)
Top ten deep-sky objects for June: M5, M101, M102, NGC 5566, NGC 5585, NGC 5689, NGC 5746, NGC 5813, NGC 5838, NGC 5907
Top five deep-sky binocular objects for June: M5, M101, M102, NGC 5466, NGC 5907
Challenge deep-sky object for June: Abell 2065
The objects listed above are located between 14:00 and 16:00 hours of right ascension.