Photographer

Bartolomeo Montrucchio

E-mail

bartolomeo.montrucchio@polito.it

Location

Torino, Italy, near city center

Date

17 August 2012, 21.51.47 UT

Equipment

Refractor Celestron Omni XLT 120 on a Vixen GP, motor in RA. Point Grey Flea2 FL2G-13S2M-C with a Televue Powermate 2,5x for a final f20.83. 304 frames of 133ms, about 100 stacked by means of Registax 5. Images taken with AstroIIDC. Final processing with Photoshop. The image has been enlarged three times to have comfortable size.

Description

The photo shows Otto Struve 410, in particular its components A,B and C. Separation of AB is 0.9". Excellent seeing (9/10 on Pickering scale, 15 knots of wind at the 300 mb level (Unisys Weather)), SQM 17.7. The C star is 8.72; in the complete image also D component (10.02) is present, but here the image has been cropped because of the very strong difference between A and D, about 20 times which makes visualization very difficult. Separation is between rod shaped and figure eight, very good result for the 120mm; spherical aberration is present, but rings are clearly visible.

Photographer

Pedro de Carvalho Paiva

Location

Sao Carlos, SP, Brazil

Date

July 13, 2012, 23:30 UT

Equipment

Orion ED 80mm f/7.5 refractor, Canon 1000D camera, HEQ5 Pro mount. Stack of 20 90-sec exposures.

Description

Reigning supreme among all globular clusters in our galaxy is Omega Centauri. Easily visible to the naked eye even in suburban skies, it contains several million stars as old as the Galaxy itself.

Photographer

Fernando Roquel Torres

E-mail

roqueltechnologies@gmail.com

Location

Caguas, Puerto Rico

Date

6/29/2012 - 9:30PM

Equipment

Celestron Astromaster 114EQ, Eyepiece 32mm Plossl Omni, Canon PS A590 IS

Description

In this photo shows the M13 Globular Cluster in Hercules Constellation

Photographer

Robert Horton

E-mail

stargazerbob@aol.com

Location

White Mountain, CA

Date

May 2002

Equipment

Rapid Omega with 180mm lens, guided 20 minutes

Description

This photo of the central region of Scorpius was taken with a medium format camera using Ektachrome 200 film and a 20 minute exposure.

Photographer

Il-young, Seo

E-mail

seo102@gmail.com

Location

Korea

Date

2012-04-27

Equipment

Telescope - WilliamOptics FLT110 (F7) Mount - ADT MorningCalm 200GE (Astrodreamtech, korea) CCD - SBIG ST2000XCM Guide - ST2000XCM self-guider Exposure : -20C , 900s * 6 pic

Description

Telescope - WilliamOptics FLT110 (F7) Mount - ADT MorningCalm 200GE (Astrodreamtech, korea) CCD - SBIG ST2000XCM Guide - ST2000XCM self-guider Exposure : -20C , 900s * 6 pic Test for ADT MC200GE mount. Mount has good perfomance!! And FLT110 is good, also.

Photographer

Fernando Roquel Torres

E-mail

roqueltechnologies@gmail.com

Location

Caguas, Puerto Rico

Date

6/9/2012 - 10:30PM

Equipment

Celestron Astromaster 114EQ with 114LCM Mount, Eyepiece 32mm with Barlow 2X Omni / Nikon Coolpix P500 Manual Mode, f3.4, 4 Sec, AF

Description

In this photo shows the binary star Albireo (Albireo A, Albireo B)in Cygnus Constellation.

Photographer

Craig & Tammy Temple

Location

Hendersonville, TN, USA

Date

May 24, 25 & 26, 2012

Equipment

Telescope: Stellarvue Raptor SVR105 @ f/7 Accessories: Stellarvue SFF7-21 flattener; Dew control by Dew Buster; Alnitak Flat-Man Mount: Takahashi EM-200 Temma2 Camera: QSI583wsg CCD @ -10.0C Guiding: Starlight Xpress Lodestar via PHD Filters: Astrodon Tru-balance E-Series Generation II LRGB Exposure: 33 x 6min.(L); 12 x 6min.(R); 15 x 6min.(G); 16 x 6min.(B); all binned 1x1 Acquisition: ImagesPlus Camera Control v4.3 Processing: Calibration, DDP in Images Plus v4.5; Registration in Registar & ImagesPlus Post-processing: ImagesPlus 4.5; Adobe Photoshop CS5

Description

M13 (NGC 6205), the Great Hercules Cluster, is a globular cluster of approximately 300,000 stars that lies around 25,000 light-years away in the constellation Hercules and has an apparent magnitude of 7. This cluster is about 145 light-years in diameter. Edmond Halley discovered M13 in 1714 but it was not catalogued by Charles Messier until June 1, 1764. The galaxy that lies to the upper right of the cluster in this image is a 12th magnitude edge-on galaxy, designated NGC 6207, and halfway between NGC 6207 and M13 is the small galaxy IC4617.

Photographer

eitel monaco

E-mail

monaco.e@pg.com

Location

Tannay - switzerland

Date

15-05-2012

Equipment

MEADE RCX400 16' with SBIG ST8 Xme

Description

HR Diagrams that correlate color and absolute magnitude for Open and Globular clusters. It can be seen how in the open clusters there is abundance of blue and hot stars, with only a few red giants, while in the oldest globular clusters, most of the stars have now left the main sequence with only few blue hot stars left. On the M67 HR diagram, thought in the past to be cluster from which our Sun originated, it can be seen the abundance of yellow stars in the middle of the main sequence.

Photographer

Frankie Lucena

Location

Cabo Rojo, Puerto Rico

Date

3/21/2012

Equipment

Kodak Z740 piggybacked on a Meade Polaris Refractor.

Description

By slowly slewing the telescope during the 8 second exposure, I was able to capture the colors that were emitted by these stars. The colors are produced by the prism effect in our atmosphere. Sirius by far, emits the widest variety of colors.

Photographer

Eitel Monaco

E-mail

monaco.e@pg.com

Location

Cinainnati

Date

august 2011

Equipment

MEADE RXC 400 16' SBIG ST8 XME

Description

The Hertzsprung Russell diagram for M13 shows that the stars here have left the main secuence and transormed into red giants, leaving only a few hot blue stars, provinf the age of this object above 10 billion years. Star identification with Astroart 4. Ln Lum vs Ln B/R correlation in XL with Pavone's algorithm.