Category: Star Clusters

A Bright Open Cluster 800 Light Years Away

I want to post my 2nd best drawing about M7.

Object: M7
Constellation: Scorpius
Date: 08. 04. 2010.
Time: 1:00-1:35 UTC
Location: 27 m above sea level next to Kalo Nero, SE Crete, Greece, EU
Instrument: 60/200 Akr., 20 mm Plossl (10x magn.)
Limiting magnitude: better than 5.5
Media: white paper, black pencil (0.5mm), graphite, invert.

Gergő Kovács

A Cluster Spectacular

Object Name: M 15 (NGC 7078)
Object Type: Globular Cluster
Constellation of Pegasus
Location: Malpica del Tajo. Toledo; SPAIN
Date: 5/Nov/2010; U.T: 21:00
Media: graphite pencil, white paper, inverted GIMP2.
Telescope: SCT 8″
Eyepiece: 13 mm Hyperion.
Mag.: 155X

In the sky of the winter months we found few globular clusters. The
constellation of Pegasus is a cluster spectacular and very special: M 15. It
is perhaps the densest of all globular clusters in our galaxy and contains
the first planetary nebula discovered in a globular cluster. …
More information about the sketch and M 15 in:

http://astrodibujo.blogspot.com/

Mariano Gibaja

More than Seven

M 45 The Pleiades

Everyone has seen it. Many have sketched it. And recently I discovered in all the times I have observed it and admired its beauty I have never attempted a sketch of the Pleiades. I fail to get that great dark sky view from my location but the eyepiece shows the sisters in their blue white.
This is how I see it in a small Dobsonian telescope from my poor viewing location near Chicago .

Sketch drawn using a 4.25″ f/5 Dobsonian telescope and a 24mm eyepiece for 22 power magnification.
Partly cloudy, Seeing 6/10, Transparency 7/10
Date, Time and Place November 28, 2010, 12:00am – 12 40am, Oak Forest, Illinois
Inverted sketch with HB and B graphite pencils on white copy paper. Some star brightness adjustments with Microsoft Paint.

Frank McCabe

Spectral Colors of the Hyades

# Object Name: The Hyades
# Object Type: Open Cluster
# Location: Barcelona (Spain)
# Date: 2010-11-05; 23h 30m U.T.
# Media: White paper, HB2 graphite pencil, scanned and colored with Photoshop
# Binoculars: 10×50 with tripod.
# Seeing: 4/5 (5= The best)
# Transparency: Clear. Moderate light pollution. Without Moon
# Constelation: Taurus
# Position: R.A.: 04h 26.9m / Dec: +15º 52′

Hello,

For beginners… and amateur or professional astronomers, the Hyades is an easy and amazing open cluster best viewed with 10×50 binoculars. The nigth of 5th November I enjoyed with the wide varity of spectral colors of the stars belong to this open cluster, so I used the Photohop in order to show these colors in my sketch.

Aldebaran, not a Hyades physical member, is a great esthetic plus.

For more information about the sketch you can visit my blog at:

http://laorilladelcosmos.blogspot.com/2010/11/las-hiades-cumulo-abierto-en-taurus.html

Thank you and clear skies for all.

Oscar

Gems of Perseus

Object Name Messier 34 in constellation Perseus
Object Type Open Cluster
Location Tiszaújváros, Hungary
Date 30.10.2010
Media sketch: graphite pencil, final drawing: felt tip pen
My first open cluster-drawing with a felt tip pen.
I used a 80/400 achromatic refractor, with a magnification of 66x. The size of the field is 52′
This quite neglected cluster reminds me of the Owl-cluster, because of the two brigter stars at the cetre.

Árpád Szabó

First Globular Cluster with a Planetary Nebula

Messier 15 (NGC 7078 in Pegasus)

Messier 15 is my favorite bright, compact, globular cluster in the fall night sky. At magnitude 6.2 it is a bright globular target from poor suburban skies. The brightest stars of this target resolve well in a 10 inch scope. This globular is 33,600 light years distant and just filled with ancient stars.
This cluster is one of the densest of the 158 Milky Way globular clusters. It is the very first known to contain a planetary nebula (Pease 1) discovered in 1928 at Mt. Wilson Observatory.
The sketch was made with a wide field 24mm eyepiece at 60 x. The inset contains a higher magnification sketch using a 9mm eyepiece at 160 x.

Sketching:
Messier 15 (NGC 7078)
Date and Time: 11-1-2010, 10:15pm – 11:00pm local time
Scope: 10” f/5.7 Dobsonian. 24 mm and 9 mm eyepieces 60x and 160x
8”x 12” white sketching paper, B and 4B graphite pencils,
blending stump, scanned and inverted
Seeing: Pickering 6/10
Transparency: Average 3/5
Faintest stars visible overhead 4.3
Temperature: 4°C (40°F)
Cluster magnitude: 6.2, brightest member stars 12th magnitude
Distance: 33,600 ly
Location Constellation: Pegasus

Frank McCabe

Tail of the Scorpion

object name: NGC6231
object type: open cluster
location: São Paulo city, Brazil
date: July 26, 2010 01:00 am, local time
midia: graphite pencil steadtler mars lumograph number 6B, 4B, 2B, B, paper white 90g/m²
telescope maksutov 90mm in EQ1, eyepiece superploss 32mm, viewfinder GSO 8×56 erector prism
average light pollution, affected objects to 30 °
good visibility of the sky, little wind, 21°C

—
Guilherme de Andrade