Category: emission

Heart of the Orion Nebula

Observer: Saeed Zohari
Date: Dec 29, 2010
Time: 20:40 (Tehran: +03:30 UTC)
Location: Tehran ( Lat.: 35° 43.158’N, Long.: 51° 30.616’E, Elev.: 1278m)
Optic: Telescope: Maksutov 102mm Focal Length: 1300mm
Eyepiece: 15mm 66d UltraWide
Object: Trapezium Cluster in the heart of the Orion Nebula
Object Type: Cluster and Nebula
Media: white pencil and black paper

Description:
The Trapezium, or Orion Trapezium Cluster is a tight open cluster of stars in the heart of the Orion Nebula, in the constellation of Orion. It was discovered by Galileo Galilei. On February 4, 1617 he sketched three of the stars (A, C, D), but missed the surrounding nebulosity. The fourth component (B) was identified by several observers in 1673, and several more components were discovered later, for a total of eight by 1888. Subsequently several of the stars were determined to be binaries. Telescopes of amateur astronomers from about 5 inch aperture can resolve six stars under good seeing conditions.
The Trapezium is a relatively young cluster that has formed directly out of the parent nebula. The five brightest stars are on the order of 15-30 solar masses in size. They are within a diameter of 1.5 light-years of each other and are responsible for much of the illumination of the surrounding nebula. The Trapezium may be a sub-component of the larger Orion Nebula Cluster, a grouping of about 2,000 stars within a diameter of 20 light-years.

A Nebulous Study

Hi all,

Sydney’s skies have been terrible for a long time. Finally tonight we got a clear, cloudless and dewless night. And I wasn’t going to let a little Moonlight get in the way.

As Sydney’s skies are also loaded with light pollution, the full potential of the Eta Carina nebula isn’t realized. The Homunculus Nebula isn’t visible at 29X – it’s too small. However, its distinctive colour is visible, it is the bright, orangeish star.

This sketch was more a case of blowing out some cobwebs from my pencil case. Modest gear, short time, and a refreshing ale. A target I wish to revisit in the coming New Moon from a dark site.

Object: NGC 3372, Eta Carina Nebula
Type: Emission nebula
Scope: 8” f/4 Newtonian, dob mounted
Gear: RKE 28mm (29X) and OIII filter
Location: Sydney
Date: 23rd March, 2011
Conditions: Awful Sydney sky + last ¼ Moon.
Media: White pastel, black & white charcoal, white and coloured ink on black paper

Cheers,

Alex M.

A Nebulous Study

Hi all,

Sydney’s skies have been terrible for a long time. Finally tonight we got a clear, cloudless and dewless night. And I wasn’t going to let a little Moonlight get in the way.

As Sydney’s skies are also loaded with light pollution, the full potential of the Eta Carina nebula isn’t realized. The Homunculus Nebula isn’t visible at 29X – it’s too small. However, its distinctive colour is visible, it is the bright, orangeish star.

This sketch was more a case of blowing out some cobwebs from my pencil case. Modest gear, short time, and a refreshing ale. A target I wish to revisit in the coming New Moon from a dark site.

Object: NGC 3372, Eta Carina Nebula
Type: Emission nebula
Scope: 8” f/4 Newtonian, dob mounted
Gear: RKE 28mm (29X) and OIII filter
Location: Sydney
Date: 23rd March, 2011
Conditions: Awful Sydney sky + last ¼ Moon.
Media: White pastel, black & white charcoal, white and coloured ink on black paper

Cheers,

Alex M.

The ineffable Beauties of Orion

The data of the drawing:
M43&M42

Telescope: 7×50 binoculars (Tento)
Date: .01.24.2011

Observing Location: Zakany – Hungary, 46° 15′ N 16° 57’E elev.: 129m
This digital drawing preparated GIMP 2.6 programs.

Thank you for it!

Clear Sky !

Tamas Bognar

http://tamasasztro.tk

—
Üdvözlettel !
——————————-
Bognár Tamás

http://tamasasztro.tk

skype : bognartamas
msn : bognart@gmail.com

Southern Beauty

Object Name: Eta Carina Nebula (NGC3372)
Object Type: Nebulae
Location: Itajobi – SP – Brazil
Date: 30/12/2010 – 05h15min U.T.
Media: 0.5mm 2B graphite pencil on white paper, scanned and inverted.

Telescope: 180mm f/D=6 reflector, dob. mount.
Eyepieces: Antares Plössl 10mm; GSO Super Plössl 32mm (as seen in the picture).
Barlow: GSO three-element 2.5x
Turbulence: 3/5 (regular).
Seeing: 4/5 (good).
Fair wind, no clouds, high temperatures.

If you are allowed to point your telescope (or even a bino) toward south, you’ll be able to see this stunning deep sky object. I was waiting Saturn to rise, the sky was nice, cloudless. I had observed this object sometimes before, without knowing its name. That night I decided to sketch it, so I could search for its name later. Positioning each star was surely the hardest part. I’ve observed it from my backyard, not thoroughly dark, but enough to see incredible features, specially using the barlow lens. The Keyhole Nebula, inside Eta Carina Nebula, was amazing. That’s the way I like to sketch: knowing nothing about the object in advance, not to influence the register. I prefer researching about it after observing, it’s much more pleasant. I hope you enjoy it, I loved the image I’ve seen.

Clear sky to all,
Rodrigo Pasiani Costa.

Big Binocular Orion Nebula

Subject: big binocular M42

Hello Artists,all o.k.?I’m depressed about the weather..i hope in 4 of January for the partial Eclipse of Sun.
I made only one sketch,M42 made with my big bino Astrotech 25×100 behind my home.The night was very icely but the sky was great,the Nebula in the bino was spectacular , in one full field of stars….I hope,next day to continue my sketch with the stars of belt and Flame Nebula.At the end i made one “poster”of Orion!
Happy New Year at all.
Ciao,Giorgio.
.
Location:Pergola,10 December 2010 at 11,45 p.m. l.t.
Instrument: Big bino 25×100 (straight vision)on wood heavi trypod in steady mount
Seeing.Excelent
Temperature:Icely,no wind.
Technics:withe pastel and penn on black paper Fabriano 3.