In Manx skies... June 2010 ~ compiled by Dave Storey



Moon

New
12th at 11.15h

First Quarter
19th at 04.29h

Full
26th at 11.30h

Last Quarter
4th at 22.13h






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Note: All times are Universal Time (UT)

There are no solar or lunar eclipses visible from the Isle of Man this month. On the 26th, a partial lunar eclipse occurs. Visible from the Pacific Ocean, Australia and New Zealand.

Sun

Solar activity remains low in visible light but sunspot activity has shown signs of increasing during the later parts of 2009 and early 2010.

WARNING: NEVER DIRECTLY OBSERVE THE SUN WITH YOUR NAKED EYES AND/OR OPTICAL INSTRUMENTATION: YOU WILL BE BLINDED!

Carrington's Solar Rotation number 2098 starts on the 16th at 04.48h.

Summer Solstice occurs on the 21st at 11.28hrs.

Mercury

Is poorly placed for viewing from the Isle of Man. It is seen best from the tropics and southern skies in the dawn sky. The planet passes through superior conjunction (far side of the sun) on the 28th.

Venus

Is in the evening sky shining at a brilliant -4.0. At the beginning of the month, the planet sets at 23.30h, about 2h 50m after sunset. By months end, the planet will set 23.00h, which is 2hrs after sunset.





 Through a telescope the planet will display a small disc ranging  from 13.0" to 15.4" and a phase that decreases from 80.9% to  71.2%

 After sunset on the 14th, the crescent Moon will be seen about  6° to the lower right of Venus.

Mars

Is in Leo shining at +1.1 at the start of the month and fading to +1.3 by the end of the month. The planet is too far away now from earth to get a decent view of the surface details. The disc of the planet is now less than 6 arc seconds.
On the 7th, the planet comes to within 1° of the bright star Regulus in Leo. Of the two, Regulus will be slightly fainter at magnitude +1.4 compared to Mars' magnitude of +1.2

Asteroids


 The first asteroid to be discovered, Ceres  reaches opposition on the 17th when it will be  found in Sagittarius shining at +7.2. During the  first week of June, Ceres will pass just south of  the Lagoon Nebula, M8 and this will be a good  time to locate this dwarf planet. Use the chart  left to identify the "star like" object slowly  creeping passed the nebula.

Jupiter

Is a morning object in Pisces, Shining at -2.4. At the beginning of the month, it rises 2hrs before sunrise at 01.40hrs. At the end of June, it will rise just before 00hrs about 3 and 3/4hrs before sunrise.

On the 8th at 08.42hrs, Jupiter is in conjunction with the planet Uranus. The minimum separation being 26 arc seconds. You will need a telescope to see this event in the dawn sky before sunrise as the sky will be bright.

Saturn

 Is in the constellation Virgo, shining at +1.0 and  fading slightly by months end to +1.1.
 

 The rings of Saturn are at a shallow angle,  from+1.7° to +2.1°.

 The north side of the rings are on view.

 The moon Titan is west of the planet 5th ,6th ,7th ,  8th 21st ,22nd ,23rd , 24th . It will be east on 13th  14th ,15th ,16th ,29th and 30th.

Uranus

Is a morning object in Pisces close to Jupiter. Due to the brightness of the dawn sky, it will be poorly seen this month.

Neptune

Is in the morning sky in Aquarius, shining at a dim +7.9. At the start of the month, it rises at 00.47hrs and at 22.53hrs at the end of the month.

Pluto

Pluto reaches opposition (Opposite the sun in the sky) on the 25th, Shining at a very dim +14.2, so a telescope of reasonable size will be required to glimpse this dwarf planet. It passes just north of Messier 24 and this may help in identifying the planet.







Meteors

Ophiuchids are active from 19th May through July with two maximums occurring on the 10th and 20th June. Activity is low when a Zenithal Hourly Rate (ZHR) of 5 may be seen. The shower is poorly placed for viewing from the UK and best viewed from the southern hemisphere. The radiants are at RA 17h56m Dec. -23° and RA 17h20m Dec. -20°.

Occultations (Stars Brighter than Magnitude +6.0)

Date Time            ZC#    SAO#           Magnitude. P.A.  Type of event.    Notes

23rd        22.33:57   2286     183982         5.4          091        DD    V913 Sco.

28th        23.41:11   2987     163614         4.9          248        RD    rho Cap.

Times are UT as seen from IoMAS Observatory. Start to observe these events about 20 minutes before the above times to allow for differences in your latitude and longitude. This will give you time to locate the star that is about to be occulted.

ZC = Zodiacal Catalogue. Type of Event DD = disappearance at dark limb, RD = Reappearance at dark limb. RB = Reappearance on bright limb. PA = Position Angle around limb of the Moon, where 0 degrees is north, 90 degrees is east, 180 degrees is south and 270 degrees is west.

Algol

This star drops from magnitude +2.1 to +3.4 in about 5 hours. Suitable dates when the eclipse maximum can be observed from the Isle of Man are on 20th at 00.18h.
Click Here for star chart.

Comet

Two comets may be seen this month but the summer twilight skies will make observing them a challenge.

Comet P/Tempel (10)P


This comet was discovered in 1873 by William Tempel from Milan, Italy. It will attain a magnitude of around +8.3 by the end of the month, so a reasonable size telescope should pick it up. Click here for ephemeris.

Comet McNaught (C/2009 R1)


It will be seen crossing the northern horizon through Andromeda, Perseus and Auriga. At the start of the month, it will be around magnitude +8.0 and will brighten during the month to +4.6 by months end. So this should be a binocular object at least. Will it be visible to the naked eye in the twilight skies in the north?Click here for ephemeris.

Discovered by Robert McNaught on 10th September 2009 and this was his 51st comet discovery. It reaches closest position to the sun on 2nd July.


ISS

The international Space Station crosses the Manx skies on a regular basis. For the latest information on when the ISS is due to pass across the sky over the next ten days, visit the link below.

ISS transit Information from Heavens Above.com

Noctilucent Clouds (NLC)

 Noctilucent Clouds are luminous clouds  that appear normally at the northern  horizon at around local midnight. They  have been observed for at least 125  years but of late, they have become  more common, brighter and seen from  latitudes much further south than  normal. They appear around the months  May to July so keep an eye on the  northern sky.



For the latest updates on observations for 2010, click on this link: NLC Sightings


Bibliography for Manx Night Skies

The Handbook of the British Astronomical Association 2010. BAA. 2009
2010 Yearbook of Astronomy. Patrick Moore. Macmillan. 2009
Philip's Stargazing 2010. Heather Couper & Nigel Henbest. Philip's. 2009
Observer's Handbook Meteors. Neil Bone. Philip's 1993
Atlas of the Night Sky. Storm Dunlop. Collins. 2005
Constellations. Josef Klepešta and Antonin Rükl. Hamlyn. 1979
Brilliant Stars. Patrick Moore. The Book People Ltd. 1996
Complete Guide to Stargazing. Robin Scagell. Phillip's. 2006
Turn Left at Orion. Guy Consolmango and Dan M. Davis. Cambridge U.P. 2008
Norton's 2000.0 Edited Ian Ridpath. Longman Scientific & Technical. 1989


Planetary data derived from Guide 8 Software.
Picture graphics derived from Stellarium and Guide 8 Software.