Manastro Journal for June
Unfortunately with the country still in lockdown, the Godlee
Observatory is still closed for the forseeable future. Why not join us instead for a 'Zoom' webchat, most Thursday evenings. See
Facebook for details.
In the Sky for the next few weeks (images taken at 10pm on 15th):-
1st Quarter on the 18th
Full Moon on 24th
3rd Quarter on the 2nd
New Moon on 10th
On the 10th there will be a Annular solar eclipse, where the moon will pass infront of the sun. this will be visible from Canada and Greenland if you happen to be there, but from Manchester the sun will be eclipsed up to a maximum of 25%
(39% elsewhere in the UK).
The eclipse can be seen in Manchester between 10:16 and 12:16, with the maximum at 11:16
Solar Eclipse image © timeanddate.com
21st June will be the longest day of 2021 in the Northern Hemisphere (midsummers day). This is the day when the Sun's annual journey through the constellations of the zodiac carries it to its most northerly point in the sky, in the constellation of Cancer at a declination of 23.5°N. This day is counted by astronomers to be the first day of summer in the northern hemisphere.
Sunrise will be at 04:40 and Sunset at 21:44
Planet(s) of the month: Jupiter
Diameter: 142984 km 11.21 Earths
Mass: 317.8 Earths
Density: 1.24 g/cc (water=1)
Gravity: 2.53 G
Rotation Period: 0.41 days 0d 09h 55m
Jupiter is starting to put on a longer morning appearance, appearing almost 5 hours before sunrise by 30th June.
With Mars not really visble in the evening sky and Uranus & Neptune not
visible this month, Jupiter is one of the best planetary targets this month.
Jupiter will also go into 'retrograde' this month on the 20th, where it appears to be travelling backwards across the sky.
Jupiter is the fifth planet from the Sun, orbiting at a distance of 5.20 AU once every 11.86 years.
It is the solar system's largest and most massive planet, with 2.5 times the mass of all the other planets combined, and over 300 times that of the Earth. Its radius is over 10 times that of the Earth, but despite this, it rotates on its axis at phenomenal speed, completing one revolution every 9.9 hours.
Jupiter is a gas giant planet, composed mostly of hydrogen and helium. It does not have a solid surface and is comprised almost entirely of gas, though it may have a small solid core at its center. Within this gaseous atmosphere there are thick clouds of tiny solid crystals, predominantly of ammonia. It is these clouds which make Jupiter opaque and determine its visual appearance.
Constellation of the Month: Camelopardalis (shown 15th June 22:00)
Camelopardalis is an oft overlooked constellation located in the northern sky. It's name comes from the Latin derivation of the Greek word for “giraffe.”
Camelopardalis is the 18th largest constellation in the night sky, occupying an area of 757 square degrees. It is located in the second quadrant of the northern hemisphere (NQ2) and can be seen at latitudes between +90° and -10°.
The neighboring constellations are Auriga, Cassiopeia, Cepheus, Draco, Lynx, Perseus, Ursa Major, and Ursa Minor.
The constellation was created by the Dutch astronomer Petrus Plancius and documented by the German astronomer Jakob Bartsch in 1624.
Camelopardalis has no 'headline acts' in the form of
Messier objects, but it does host Kemble's Cascade, an asterism of more than 20
colourful stars 5th to 10th magnitude arranged in a straight line over approx 3
degrees of night sky
Cameleopardalis also is home to several notable deep sky objects: the open cluster NGC 1502, the spiral galaxy NGC 2403, and the dwarf irregular galaxy NGC 1569
Kembles Cascade - Credit & Copyright: Processing - Noel Carboni, Imaging - Greg Parker, New Forest Observatory
NGC2403 - Image Credit & Copyright: Eric Coles and Mel Helm
Daytime Arietids. May 14 - June 24 (Peak June 07), ZHR 50
June Bootids. June 22 - July 02 (Peak June 27), ZHR var
MAS Society & MAS Facebook members' recent images
Here is a selection of some of the recent images from our members,
ther are far mor excelent pictures on our Facebook page & in the images section
of this website, check them out.
Leo Triplet © Clive's Astro Photos - 07/05/21
M101 © Phil Swift - 11/05/21
M27 © Alan Beech - 19/05/21
ISS © Martyn Jones - 20/05/21
M57 © Phil Swift - 13/05/21