Messier 92 (M 92)
Introduction | Map | Sketch | My
Observations | References
On this page I collect my observations of the globular star cluster M
92 in the constellation Hercules.
The globular star cluster M 92 in the Hercules constellation
is somewhat smaller (depending on the author, it is 7 'or 8' in size) than
its more familiar "brethren" M
13. It is located above the Keystone asterism, the most prominent part
of the constellation More difficult to find than M
13. I was able to clearly
see the bright nucleus - M 92 appears somewhat more concentrated ta the center
than M 13 - but
not dissolve single stars. In my binoculars, M 92 appeared also very small.
Size: 7' / 8' (Stoyan/Karkoschka)
Distance: 25,000 light years (Stoyan)
Rating: *** (Stoyan)
M 92 is located above the Keystone asterism and a little more difficult
to find than M 13. First find the Keystone asterism!
The sketch by Michael Vlasov (DeepSkyWatch.com)
provides a rough impression of what I observed in Summer/Autumn 2016 (my
impression was much fainter and smaller than the sketch):
of the M 92 globular star cluster by Michael Vlasov (Copyright © Michael
Vlasov 2016) - presented with the author's permission
My Own Observations
Observations Summer to Autumn 2016
- End of August 2016 (Mühlhausen/Kraichgau: Heritage
100P, Heritage P130,
and GSD 680): Observed M
92 many times at various magnifications.
- September 1, 2016 (ditto: Heritage
100P), September 7, 2016 (dito: Skymax-102 on GoTo mount),
September 99, 2016 (dito: Heritage P130 on GoTo mount):
Observed M 92 with various telescopes.
- End of September, beginning of October 2016 (Sumène, Haute Loire,
France: Heritage 100P, LT binoculars):
92 at various magnifications and with binoculars.
Observations May 2017
- May 12, 2017 (Mühlhausen/Kraichgau: Explorer
150PDS on GoTo mount): M
92 not found, but M 13...
- May 14, 15, 2017 (ditto): M 92 (gap in balcony)
and further globular star clusters seen well (7 mm; 24/16 mm on May 15),
all somewhat "resolved";
M 13 was the largest cluster
- May 16, 2017 (ditto): M 92 and further globular star
clusters seen well (24/4 mm), all somewhat "resolved"; M 13
was the largest cluster. Probably never seen them that well and large
(4 mm) before …
Observations October 2017
- Oct 2017 (Mühlhausen/Kraichgau:
TS binoculars): M 92 observed with binoculars.
Observations September/October 2018
- Sep 27, 2018 (Sumène, France: PS 72/432, AZ
Pronto Mount): M 92 seen well with PS72 and 4 mm, bright and
small; M 13 ditto, but larger
- Oct 4, 2018 (Betz, France: PS 72/432, AZ
Pronto Mount): M 13 und M 92 in Betz (Orion43) seen very good,
stars partly resolved
On this Site