Photographer

Bob Christmas

E-mail

bxmas@interlynx.net

Location

Barry's Bay, Ontario, Canada

Date

May 5, 2011 12:19 -->12:34 AM EDT

Equipment

Camera: Canon Digital Rebel 300D SLR set at ISO 800 & RAW mode. Lens: Tamron 300mm f/2.8 lens, set at f/3.5 Mount: Super Polaris EQ. Tracked but not guided. Exposures: 6 x 60 seconds each = 6 minutes total. Stacked using Deep Sky Stacker 3.2.1; post-processing (levels and curves) done using The Gimp 2.6.

Description

These are the globular clusters M10 (left) and M12 (right) in Ophiuchus. NOTE: The trail at upper right, I suspect, is a geosynchronous satellite because the trail is approximately 15 arcminutes long in each of the individual minute-long exposures. Extrapolating to one hour, this would be 900 arcminutes = 15 degrees. Since the Earth rotates 15 degrees every hour, this would mean the satellite is stationary over the same spot on the Earth. North is at upper right, approximately perpendicular to the satellite track.

Photographer

Vince Tuboly

E-mail

tubolyv@t-online.hu

Location

Hegyhatsal, Hungary

Date

2011.04.19. 18:42 UT

Equipment

50 cm Ritchey-Chrétien, CANON EOS 450D, ISO 1600, Exp. time: 0,5 sec.

Description

Photo: Vince Tuboly, Hegyhat Observatory, Hungary

Photographer

Ernest R. Evans

E-mail

dy4dy6ca6@yahoo.com

Location

Pawcatuck, CT

Date

March 4, 2011 04:07 UT

Equipment

Celestron 11" SCT w/Hex Mask and Diagonal at 200X. Digital Camera Afocal,ISO 400, 5", f/8 in Good Seeing. Processed in XnView and MS Paint.

Description

This photo shows the companion to Sirius (Sirius B), aka 'The Pup', in 'positive' and 'negative forms'. The 10,000 times difference in brightness between the pair makes the fainter star difficult to see with smaller scopes unless it is well separated in angular distance from the primary and the seeing is good. A hex mask makes it easier to see and photograph the Pup, but even so, I had to take numerous exposures to collar this puppy! Ernie Evans

Photographer

Bernard Miller and Arei Nagel

E-mail

bgmiller011@cox.net

Location

Rancho Hidalgo, NM and Eindhoven, Netherlands

Date

May 2011

Equipment

Telescope: TEC-140 (F7) for RGB Telescope: 300mm Newtonian (F3.9) for Luminance Camera: SBIG ST-8300M Mount: AP900 GTO for Tec-140 Luminance:5 x 12 minutes, 1x8 minutes, 18 x 5 minutes Red: 6x5 minutes (unbinned) Green: 6x5 minutes (unbinned) Blue: 6x5 minutes (unbinned)

Description

This picture is a collaboration between Bernard Miller from Phoenix, AZ and Arie Nagel, Eindhoven, Netherlands. Arie took the luminance date on his 300mm Newtonian and combined it with the RGB from Bernard's TEC-140. Both used the SBIG ST8300M camera. The image processing was done by Arie and Bernard.

Photographer

Miroslav Matousek

Location

Prague, Czech Republic

Date

May 8th, 2011 21:25 UT

Equipment

Tele Vue 127 NP, Nagler 2,5mm eyepiece, DMK31 camera, Losmandy G11 Gemini mount.

Description

Inspired by the article "Porrima´s Grand Opening" in the April 2011 issue I took this photograph.The avi file was processed by Registax 5.1 and with Adobe Photoshop.

Photographer

James, Grace, Forrest, and Emily Maxwell

E-mail

jlmaxwell@jm-astro.com

Location

Caldera Rim Observatory, Near Jemez Springs, NM

Date

Jan. 21, 2009, 1:30-3:30AM

Equipment

Meade 10" F/4 Schmidt Newtonian on Losmandy G-11 Mount. Cooled Canon 400D. Processed in Nebulosity and Photobrush.

Description

NGC 2682 (M67) is one of the oldest open clusters in the Milky Way (abt. 4 billion years), and has many stars similar to the sun. It also has numerous red giants. It has a yellowish cast due to a lack of bright, young stars. A total of 1 hour, 20 minutes of 3 minute exposures were taken at -8 degrees Celsius, and at an elevation of 8300 ft. Dark and flat frames applied.

Photographer

Bernard Miller

E-mail

bgmiller011@cox.net

Location

Rancho Hidalgo, NM

Date

December 13, 2010 7-11pm

Equipment

Telescope: TEC-140 Camera: SBIG ST-8300M Mount: AP900 GTO L(10x3min), R(6x5min), G(6x5min), B(6x5min) all binned 1x1

Description

The double cluster in Perseus is one of the most popular open clusters in the night sky. The two clusters NGC 869 and 884 are about 6800 and 7600 light years from Earth, respectively.

Photographer

Michael Deger

Location

30km nw from Munich / Germany

Date

10.07.2010

Equipment

optics: 4,5" - Newton mount: Vixen New Atlux camera: SBIG ST2000XM with SBIG LRGB - filters exposure times: L:R:G:B 30x2min: 6x2min: 6x2min: 6x2min

Description

The open cluster NGC7142 is located near the reflection nebula NGC7129 in the constellation Cepheus.

Photographer

Carmine Gargiulo

E-mail

astrosoft@libero.it

Location

Sant'Agnello (NA)- Italy

Date

2010-10-07 21:15 UT

Equipment

Camera Pentax K100D on apo TS 66ED to 290mm focal.

Description

Comet Hartley 3 103P near double star cluster h-chi persei.

Photographer

Massimo Torri

E-mail

massimo@cosmicjourney.net

Location

Edmonton, AB, Canada

Date

14 Oct 2010, 10pm

Equipment

Unmodified Canon XSi at prime focus of an 8"f/4.9 Newtonian on a Losmandy G-11 mount

Description

288x45s exposure at 1600ISO autoguided Blue Epsilon Cephei dominates this region of the sky with open cluster NGC 7235 on the right and the elusive planetary nebula Minkowski 2-15 in the low right