Messier 31 (M 31) - Andromeda Galaxy
Introduction | Map | Sketch | My
Own Observations | References
On this page I collect my observations of the Andromeda galaxy M 31 in
the constellation Andromeda.
The Andromeda galaxy M 31 in constellation Andromeda (but it rather is located
between the constellation of Andromeda and Cassiopeia), is our neighboring
galaxy and about 2.5 million light years away from us. Because it can be seen
with the naked eye under good conditions (in which I have never succeeded yet),
it is the most remote sky object that we can see with the naked eye. It can
be seen in binoculars and in small telescopes as a diffuse shimmering elongated
oval - and I have not been able to detect any details yet, although one should
actually recognize the two small galaxies M 32 (like a star) and M 110 in a
small telescope. In other words, light pollution is quite high in Mühlhausen
/ Kraichgau ...
Size: 3° x 1° (Stoyan)
Distance: 2.5 million light years
Rating: ***** (Stoyan)
M 31 between Andromeda and Cassiopeia
Overview map: Andromeda Galaxy M 31 and Perseus Double Cluster NGC 884/869
The sketch by Michael Vlasov (DeepSkyWatch.com)
provides a rough impression of what I observed (my impression was much fainter
than the sketch):
of the Andromeda Galaxy by Michael Vlasov (Copyright © Michael
Vlasov 2016) - presented with the author's permission
My Own Observations
Observations Summer to Autumn 2016
- Beginning of September (Mühlhausen/Kraichgau: Sep 3 Heritage
100P, Sep 6 Heritage 100P on GoTo mount,
Sep 9 Heritage P130 on GoTo mount):
Observed M 31 - a diffuse glow, no details...
- End of September, beginning of Oktober (Sumène, Haute Loire, France: Heritage
100P, LT binoculars): Observed M 31 with the telescope at various
magnifications and with binoculars, no details.
Observations February/March 2017
- February 14, 2017 (Mühlhausen/Kraichgau: GSD 680, LT binoculars): M
13 found with binoculars only. Since the sky was rather bright in the
West, the visual impression was not great, but I was able to see the galaxy
without any doubts.
- February 15, 2017: (ditto: Heritage 100P on GoTo mount,
LT binoculars): M 13 now also found with the teescope thanks to the
GoTo mount, but the galaxy was only faintly visible; the same applied to
my binoculars. Obviously, the sky was still too bright in the West...
- February 18, 2017 (ditto: GSD 680): M
13 found this time; I was able to see the galaxy well, but without
- February 26, 2017: (ditto: Heritage P130 on GoTo mount): M
13 impression with the P130 was similar to what I saw on February 18
(new moon on Feb 26).
- March 16, 2017: (ditto): M 13 was very faint.
Observations September 2017
- Sep 13, 2017 (Sumène, Haute Loire, France; LT binoculars): M 31 seen
very nicely with binoculars; accessed via three stars in Andromeda (the closest
and highest one was ny Andromeda)
- Sep 18, 2017 (ditto): M 31 seen very nicely with binoculars
- Sep 20, 2017 (Sumène, Haute Loire, France; LT binoculars, Heritage
100P): M 31 seen
with binoculars and with Heritage
100P (eyepieces: 24, 16, 7, 4 mm, 7 and 16 worked best, 4 mm too faint);
nicest with binoculars...
- Sep 22, 2017 (ditto): M
with binoculars, but not as large and bright as before (half moon, milky
way hard to see with the naked eye)
Observations October/November 2017
- October 2017 (Mühlhausen/Kraichgau: LT and TS binoculars): M 31 observed
- Nov 13, 2017 (ditto): M 31 observed with binoculars.
On this Site