October 2018 – Page 2 – Crayford Manor House Astronomical Society Dartford

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We hosted The 2018 British Astronomical Association Back to Basics workshop on 6th October.

These workshops are great for beginners just starting out in astronomy and wanting to learn how to use their telescopes or get started in Astronomy and over 50 people turned up - well done and thank you to all the Crayford Members who helped out.

The slideshow below is of photos taken of the day by member Jim Burchell - Thank you Jim.

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Spindle galaxy, M102, NGC5866

5th October 2018

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M102 is a galaxy listed in the Messier Catalogue that has not been identified unambiguously. Its original discoverer Pierre Méchain later said that it was a duplicate observation of Messier 101, but more recent historical evidence favours that it is NGC 5866, although other galaxies have been suggested as possible identities.

NGC 5866 (one of two galaxies commonly called the Spindle Galaxy) is a lenticular galaxy in the constellation Draco. This galaxy appears to closely match both the object description (by Pierre Méchain) in the printed version of the Messier Catalogue of 1781, and the object position given by Charles Messier in hand-written notes on his personal list of the Messier Catalogue.

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Images by Simon Dawes

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Pinwheel Galaxy, M101, NGC5457

5th October 2018

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| 8:22 pm

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The Pinwheel Galaxy (also known as Messier 101, M101 or NGC 5457) is a face-on spiral galaxy distanced 21 million light-years (six megaparsecs) away from Earth in the constellation Ursa Major. First discovered by Pierre Méchain on March 27, 1781, it was communicated to Charles Messier who verified its position for inclusion in the Messier Catalogue as one of its final entries.

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Images by Kevin Langford

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Images By Julian Tworek

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Images by Neil Webster

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Images by Simon Dawes

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| M1 | M2 | M3 | M4 | M5 | M6 | M7 | M8| M9 | M10 | M11 | M12 | M13 | M14 | M15 | M16 | M17 | M18 | M19 | M20 | M21 | M22 | M23 | M24 | M25 | M26 | M27 | M28 | M29 | M30 | M31 | M32 | M33 | M34 | M35 | M36 | M37 | M38 | M39 | M40 | M41 | M42 | M43 | M44 | M45 | M46 | M47 | M48 | M49 | M50 | M51 | M52 | M53 | M54 | M55 | M56 | M57 | M58 | M59 | M60 | M61 | M62 | M63 | M64 | M65| M66 | M67 | M68 | M69 | M70 | M71 | M72 | M73 | M74 | M75 | M76 | M77 | M78 | M79 | M80 | M81 | M82 | M83 | M84 | M85 | M86 | M87 | M88 | M89 | M90 | M91 | M92 | M93 | M94 | M95 | M96 | M97 | M98 | M99 | M100 | M101 | M102 | M103 | M104 | M105 | M106 | M107 | M108 | M109 | M110 |

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All images are copyright. Permission must be sought to from the image owner to the use of any of these images.

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Spirial galaxy, M95, NGC3351

5th October 2018

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Messier 95, also known as M95 or NGC 3351, is a barred spiral galaxy located about 38 million light-years away in the zodiac constellation Leo. It was discovered by Pierre Méchain in 1781, and catalogued by fellow French astronomer Charles Messier four days later. On 16 March 2012, a supernova was discovered in M95.

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Images By Julian Tworek

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Globular Cluster, M92, NGC6341

5th October 2018

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| 7:46 pm

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Messier 92 (also known as NGC6341) is a globular cluster of stars in the northern constellation of Hercules. It was discovered by Johann Elert Bode in 1777, then published in the Jahrbuch during 1779. The cluster was independently rediscovered by Charles Messier on March 18, 1781 and added as the 92nd entry in his catalogue. M92 is at a distance of about 26,700 light-years away from Earth.

M92 is one of the brighter globular clusters in the northern hemisphere, but it is often overlooked by amateur astronomers because of its proximity to the even more spectacular Messier 13. It is visible to the naked eye under very good conditions.

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Images by Simon Dawes

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Images by Keith Rickard

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The Little Bumbbell Nebula, M76, NGC650

3rd October 2018

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The Little Dumbbell Nebula, also known as Messier 76, NGC 650/651, the Barbell Nebula, or the Cork Nebula, is a planetary nebula in the constellation Perseus. It was discovered by Pierre Méchain in 1780 and included in Charles Messier's catalogue of comet-like objects as number 76. It was first recognised as a planetary nebula in 1918 by the astronomer Heber Doust Curtis. However, there is some contention to this claim, as Isaac Roberts in 1891 did suggest that M76 might be similar to the Ring Nebula (M57), being instead as seen from the side view. The structure is now classed as a bipolar planetary nebula (BPNe).Distance to M76 is currently estimated as 780 parsecs or 2,500 light years, making the average dimensions about 0.378 pc. (1.23 ly.) across.

The total nebula shines at the apparent magnitude of +10.1 with its central star or planetary nebula nucleus (PNN) at +15.9v (16.1B) magnitude. The UV-light from the PNN is expanding outer layers that form the present nebula, and has the surface temperature of about 88,400 K. The whole planetary nebula is approaching us at 19.1 km/s.

The Little Dumbbell Nebula derives its common name from its resemblance to the Dumbbell Nebula (M27) in Vulpecula. It was originally thought to consist of two separate emission nebulae and was thus given two catalogue numbers in the NGC 650 and 651. Some consider this object to be one of the faintest and hardest to see.

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Images by Andrew Wilson

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Images by Simon Dawes

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Phantom Galaxy, M74, NGC628

2nd October 2018

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Messier 74 (also known as NGC 628 and Phantom Galaxy) is a spiral galaxy in the constellation Pisces. It is at a distance of about 32 million light-years away from Earth. The galaxy contains two clearly defined spiral arms and is therefore used as an archetypal example of a grand design spiral galaxy. The galaxy's low surface brightness makes it the most difficult Messier object for amateur astronomers to observe. It is estimated that M74 is home to about 100 billion stars.

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Images by Andrew Wilson

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Black Eye Galaxy, M64, NGC4826

2nd October 2018

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| 1:23 pm

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The Black Eye Galaxy (also called Evil Eye Galaxy; designated Messier 64, M64, or NGC 4826) is a galaxy which was discovered by Edward Pigott in March 1779, and independently by Johann Elert Bode in April of the same year, as well as by Charles Messier in 1780. It has a spectacular dark band of absorbing dust in front of the galaxy's bright nucleus, giving rise to its nicknames of the "Black Eye" or "Evil Eye" galaxy. M64 is well known among amateur astronomers because of its appearance in small telescopes. It is a spiral galaxy in the Coma Berenices constellation.

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Images by Andrew Wilson

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Sunflower galaxy, M63, NGC5055

2nd October 2018

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| 9:49 am

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Messier 63 (also known as NGC 5055, or the Sunflower Galaxy) is a spiral galaxy in the constellation Canes Venatici consisting of a central disc surrounded by many short spiral arm segments, the galaxy form known as flocculent. M63 is part of the M51 Group, a group of galaxies that also includes M51 (the 'Whirlpool Galaxy'). M63 is an active galaxy with a LINER nucleus. The existence of a super massive black hole at the nucleus is uncertain; if it does exist, then the mass is estimated as (8.5±1.9)×10^8 M☉.

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Images by Andrew Wilson

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Open Cluster, M39, NGC7092

2nd October 2018

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Messier 39 (also known as NGC 7092) is a loose open cluster with about 30 members, in the constellation of Cygnus. It was discovered by Charles Messier in 1764. M39 is at a distance of about 326 pc (1,060 ly) from Earth whose age is estimated to be from 278 million years.

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Images by Neil Webster

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Month: October 2018

Back to Basics Workshop

Spindle galaxy, M102, NGC5866

Images by Simon Dawes

Pinwheel Galaxy, M101, NGC5457

Images by Kevin Langford

Images By Julian Tworek

Images by Neil Webster

Images by Simon Dawes

Spirial galaxy, M95, NGC3351

Images By Julian Tworek

Globular Cluster, M92, NGC6341

Images by Simon Dawes

Images by Keith Rickard

The Little Bumbbell Nebula, M76, NGC650

Images by Andrew Wilson

Images by Simon Dawes

Phantom Galaxy, M74, NGC628

Images by Andrew Wilson

Black Eye Galaxy, M64, NGC4826

Images by Andrew Wilson

Sunflower galaxy, M63, NGC5055

Images by Andrew Wilson

Open Cluster, M39, NGC7092

Images by Neil Webster