Category: emission

Revisiting Two Old friends

Hi all,

Tonight I received one of my biggest and most pleasant surprises at the eyepiece. It wasn’t using a half metre + monster, nor from an especially dark site. Rather, it was using my nearly 30 year old 2” f/12 Tasco refractor, and from my home in Sydney!

Over a year ago I purchased an adaptor to allow me to use 1.25” eyepieces with this little refractor, with the idea of one day making it into a finder scope. Tonight I finally got to try it out, and dust off the little refractor after many years of being unused. What I didn’t expect was the image I was to see of M42. Even the eyepiece used was a modest Super Plossl 25mm.

When I first used this little telescope, all I could see of M42 was the inner core nebulosity that surrounds the Trapesium. Tonight, despite the extra light pollution, but with 30 years experience, and I guess better eyepieces than the original, DIDN’T I SEE DETAIL!!

I even managed to see the faint, nebulous glow that makes up the Running Man nebula too.

This is the first sketch I managed to do at the eyepiece, since my meeting with Scott Mellish, nearly 2 months ago!

Scott, many thanks again for showing me your amazing technique. It has changed the way I sketch DSO’s with a pencil, paper and a dry paint brush!

Gear: 2” f/12 thirty year old refractor
Eyepiece: 25mm Super Plossl, 24X
Filter: OIII
Media: white pastel, white and black charcoal on black paper
Date: 30th December 2010
Location: my backyard, Sydney

Alex M.

Head of the Seagull Nebula

Van den Berg 93
aka Sh2-292, RCW 2, Gum 1, the head of the Seagull nebula
emission and reflexion nebula
20’ x 20’ in Monoceros

Date of observation:

14 déc. 2010 02:58 UT

Length of observation:

30 min

Object position:

Alt: 30.1°, Az: 210.5°

Weather conditions:

V0/R10kmh t-4.6° hu56%

Observation conditions:

SQMZ 21.25(MW) SQML 21.11 (?!), FWMH 3.5″, mvl(UMi) 6.4 VI2, 6.6 VI4, T0.5 P1 S5/100 !

Observing site:

Observatoire des Baronnies Provençales (Southern French Alps)

Instrument:

TN 635 Dobson Obsession

Main eyepiece:

Televue Panoptic 24mm / Deepsky filter

Magnification:

130x

Observing notes:
Although my SQM and SQML gave rather low values, the sky was remarquably transparent. Light pollution is totally absent from the Observatoire des Baronnies Provençales, overall excellent conditions to observe a large and faint target.
vdB 93 is an interesting nebula because of its dark lanes from each part of its lighting star. With patience, they can be analysed and sketched with a lot of details.
Numerous stars are scattered in the halo, which presents a beautiful light blue, enhanced by the Deepsky filter.

Clear skies

Bertrand

The Great Gas Nebula in Orion

Hey!

I send you the central part of M. 42, “The great gas nebula in Orion”.
The greenish filaments of gas that surrounds the four stars. Theta Orionis is the most beautiful object you can see in the sky in both small and big telescopes! The central part of the nebula is so bright that it is easily seen with naked eyes in the middle of Orion’s sword.

I made this sketch with crayons (watercolours) on black paper.
The observation from outside Trondheim city, Norway.

Best wishes and dark sky to all artists!! MERRY CHRISTMAS !!

From Per-Jonny Bremseth.

Open Cluster with Heart and Soul Nebulae

The data of the drawing:
NGC 1027

Telescope: 7×50 binocular
Date: 11.25.2010

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.haminfo.hu/

New Necklace Nebula

The Necklace nebula

On 2010 November 3th, Astronomy picture of the day displayed a attractive image of a new discovered nebula called Necklace nebula.
All details can be found at:
http://antwrp.gsfc.nasa.gov/apod/ap101103.html

According to me, nobody had published a drawing of it before.
Therefore, some days after, I tried to have a look at it… and I suceeded, more easely than I thought.

Through my T635 mm dobson Obsession with an Ethos 13mm (240x) and, moreover, an extra-thin OIII filter Astrodon with a 5 nanometers band pass, the nebula was supprisingly analysable, magnitude 14 – 15v estimated.
The shape was elongated, a/b about 1.75, and west part was a bit brighter than opposite, but no bright knot could be identified !
My drawing has been carried out, as usual, from a annotated sketch done under the sky, first with pencil and china ink on an A4 white Canson paper, then inverted and improved through Paint Shop Pro.
See details and notes at www.deepsky-drawings.com.

Regards

Bertrand

P.S. Details of observation:

Object name:

IRAS 19417+1701

Object type:

Unknown

Magnitude:

99.99

RA:

19h 44m 29s

Dec:

17° 10′ 49″ N

Constellation:

SGE

Observation details

Date of observation:

04 nov. 2010 19:33 UT

Length of observation:

62 min

Object position:

Alt: 42.5°, Az: 250.3°

Weather conditions:

14h: J+++ V~0 t19° hu52% T2(?) 20h: N++ V0 t11° hu83% QZ(Cyg)21.22 L60°21.20

Observation conditions:

FWMH1.5″ mvl UMi6.4:VI3, 6.6:VI4! T1.5 P2 S2-3/240 5/519 good conditions.

Observing site:

Mas des Gres (Southern French Alps)

Instrument:

TN 635 Dobson Obsession

Main eyepiece:

Televue Ethos 6mm

Barlow:

(None)

Magnification:

519x

M42 and Her Companions

Object Name M42, M43 and NGC1977
Object Type Emission and Reflection Nebulaes
Location Budy Dłutowskie (near Lodz) in Poland
Date 01:00, 13th of November 2010
Media (graphite pencil, white paper, color invert)
Equipment: Binocular Celestron Skymaster 25×100
Observing conditions: Seeing 4/5; low light pollution (naked eye range – 6,2 mag)
Hi !
This is sketch of Messier 42 (Great Orion Nebula) and her companions M43 and ‘The Running Man’ (NGC 1977) in Orion Constellation.
During the observation through this big bino, arms of M42 are clearly visible. Structures inside the nebula are also visible but they are really really faint.
M43 and NGC 1977 are shapeless, lighter areas around nebulas central stars.

Greetings,
Łukasz

Emission Nebulae in Perseus

The data of the drawing:
NGC869-884

Telescope: 7×50 binocular
Date: 10.11.2010

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

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

http://tamasasztro.haminfo.hu/

skype : bognartamas
msn : bognart@gmail.com

The Sagittarius Paradise

Hallo!
This is sketch of Messier 8 – The Lagoon Nebula in Saggitarius Constellation. Sketch was made in Jodłów during astronomical meeting StarParty 2010.

Object: Messier 8
Scope: Schmidt-cassegrain 5″ with SWAN 20mm and UHC-S filter.
Date: September 11, 2010
Place: Jodłów, The Sudetes.
Weather: Excellent. Clear, black sky.
Technique: Graphite pencil
Tooling: Inverted, some correction in GIMP2
Author: Aleksander Cieśla (Wimmer)

Two Sisters

A view of the great Veil nebula: East (at left, NGC6995 and NGC6992) and West (at right, NGC 6960).

They are expanding remnants of an ancient supernova in Cygnus located 2000 light years away from us, and span on area of 100 light years (3 degrees of arc).
A wide feld eyepieces and a narrowband filter (such as O3 or UHC) is recommended for viewing the Veil, even under dark skies, to distinguish the nebula from background star glow of the milky way.

These objects were sketched during observations through Orion 8″ f/5 newtonian, 25mm Sirius plossl eyepiece, and Orion ultrablock filter.
Drawings were rendered at different times (2009 and 2010) , under similar conditions, in Negev desert skies in Israel.
Technique is a pretty standard one – black graphite pencils, white paper, eraser, cotton balls and a red light. Later the sketch was inverted and processed in Photoshop.

Michael Vlasov