TS Optics 70mm f5 Flat Field Astrograph; QSI683 Camera @ -25°C; no guiding; Luminance 20 x 30 sec; Deep Sky Stacker v4 “Comet+Stars” method; PixInsight & Photoshop CS3.

By Sandy Giles

08012016 at 0546 hrs.  Taken from my back garden in Chesham. Sony A77V mounted on Ioptron skytracker. F8, ISO 2500, 131 second exposure with a 200 mm len. Adjusted slightly with photoshop and cropped slightly.

3 images of  Comet Lovejoy 2014 taken with either a 80mm refractor and Canon 60d, or with the camera mounted on polar mount using zoom lens.

Taken by David Godwin

C/2014 Q2 (Lovejoy) D7000 @ 130mm ISO6400 10 sec [stack of 4]

by Mark Gatehouse

Comet jacques moving over 1 hour with M52 and bubble nebula in field. Canon ef 200 mm lens modded dslr 60 min total stacked exp Mark Cullen

Comet Jacques taken on 23rd August 2014 with Skywatcher 120mm and Canon EOS 450. 20 exposures of 30 secs stacked in PShop. Tail hardly discernable so some enhancement there. David Godwin

Panstarrs 2012k 10 x 120s exp canon 450 d 8o mm refractor May 2014 M Cullen

Panstars and Andromeda at dusk 4th April 2013 canon 100O D zoom lens- M Cullen

Comet Lovejoy taken with Canon EOS 60d on Williams Optics 80mm with 0.8 focal reducer. Exposures of 30secs and 2 mins. Stacked in Pshop. David.

M31 and Comet taken 3 days after previous image. 5 exposures of 30secs at IISO 2000.

Taken on 1st April 2013 at 2045. Canon EOS 60d. 15 exps at 5" at ISO 6400 stacked in DeepSkyStacker. David

Canon EOS 450 and 80mm refractor and focal reducer. 24x30" jpegs.DS Stacker. David

Comet Garradd
located in Coathanger asterism
2011/09/01

1 min x 10 stacked images

Fred Stevenson
Andalsnes Observatory

Comet Hartley 2. Animated .gif showing movement over 20 mins. 20/10/10 0500. David

Hartley 2 taken on the 16th Oct at 2100 approx. A bit faint mainly due to bright moonlight. David

Comet 17p Holmes with Mirfak and stars of the Perseus Moving cluster. Canon EOS 400 85mm lens. David Godwin.

Comet Holmes taken 29.10.07 with Canon 400D Celestron CPC 800 10 sec exp. ISO 800, unprocessed. First attempt Jan Dell

Imaged through low cloud 
70x20secs stacked images
Fred Stevenson
Andalsnes Observatory

Description:C/2007 N3 Lulin
 

Comet 17p/Holmes taken on 14th Nov. 2 sets of images taken 40 mins apart to form anaglyph image. (specs with red filter left and blue right needed). WO80mm eos400 David Godwin

Comet Hartley 2. Same frames as previous image but stacked in DeepSStacker showing movement of comet compared to stars. David

Comet Hartley 2. 6th Oct 2010. 25x90 sec exps 1600 ISO EOS 450 and WO 80mm refract. Stacked in Pshop. David

NOT a comet! But 3 Perseids in one frame is as close as I can get! Shot from Stonehenge with an EOS 20D and 17-85mm lens on a CGEM mount. Adjusted in P'shop.
Pat Clough

80mm refract, EOS 450. David

Comet Lulin Could this be farewell? Taken 16th March. I think the star upper right is Wasat in Gemini. 10x 60” David

Comet Lulin among some stars of Leo. Canon EOS 450, zoom lens at 130mm. 10x 30sec ISO 1600. Stacked with DSStacker. David

Comet Holmes 14/11/07 23 * 40 secs Canon 400d Cannon 100 - 400mm at about 350mm Processed as before Tim Scott

Stack of 9 * 30 sec images with Cannon 400d and Cannon 100 to 400 zoom mounted on my scope. No guiding. Proccessed with DeepSkyStacker and Photoshop

21* 60 secs, ART429, Oynx with FR.
Chris Rowland

Processed using IRIS: 

subtract dark, sum frames, 
Remove gradient, subtract background, 
Logarithm, adjust levels.

151x8second stacked images
guided on comet nucleus
Fred Sevenson
Andalsnes Observatory

Comet 14P/Holmes

First light with new scope, cut off at top is poor tracking, must tighten polar align bolts.

Comet 17p Holmes among stars of Perseus. 10/12/07. Canon Eos 400 mounted on HPQ5 mount. Zoom lens at about 50mm setting. 30”exps F5 ASA 1600. David Godwin

Comet Hartley 2 on its way towards Eta Persei. 80mm refract plus .8 focal reducer. 30x1min exps. DSStacker. 10/10/10 David

Comet Lulin 28th Feb 09 WO 80mm + foc reducer, Canon eos 450 7x60” PShop 6. David

Comet P103 Hartley. 6th October 2010
81x30secs with NS11+FR & Atik 383L+ processed in DeepSkyStacker using the comet + stars mode.
Gradient removed using Iris.
Chris

Comet 2007 N3 Lulin
2009/02/28
OIII filtered image - 20x1min images
Fred Stevenson
Andalsnes Observatory

2007/10/28
Meade 14"SCT@f5 - DSI Pro camera
Fred Stevenson
Andalsnes Observatory

28/10/07 2100 WO 80mm Canon EOS 400. 20" asa 800 ALP filter. David Godwin

Camera: OM1 with 210mm lens and E200 film. 
Exposure: f/5.6 1/8 sec.

At 1700hrs UT on Wednesday I took this shot from Pembroke School very easy to see in the blue twilight..very cold wind along the Flackwell Ridge.Very old 1.5meg Sony..Shows I think that one does

Taken on 1st January 2005 from Aylesbury, Buckinghamshire, England using a Panasonic DMC FZ20 digital camera 36mm lens at f/2.8 ISO 400. 8 second exposure. Excellent transparency. The arrowed Comet Machholz is adjacent to Taurus 30 (SAO 93611) and forms a triangle with Aldebaran (Hyades) and Pleiades.

Taken on 1st January 2005 from Aylesbury, Buckinghamshire, England using a Panasonic DMC FZ20 digital camera 36mm lens at f/2.8 through the barrel of a pair of Fujinon 10x70 binoculars (afocal projection) mounted on a steady, non-driven mount. The comet can clearly be seen adjacent to the 5th magnitude multiple star Taurus 30 (SAO93611). Transparent skies in a light polluted environment.

Scope: ST80 with 0.5 focal reducer mounted on a NS11 SC1 webcam, 118 x 7sec exposures. Image by Chris Rowland.

245x10sec frames, processed in colour using IRIS

Taken 22 April 2006 from Andalsnes Observatory, Amersham, Bucks., UK using a 14" SCT, Meade DSI Pro. 40 x 45 secs stacked images at f/5. Component B of comet 73 P Schwassmann-Wachmann. Seeing poor - imaged through misty sky conditions until rain clouds called a halt to proceedings!

Taken 17 April 2006 from Andalsnes Observatory, Amersham, Bucks., UK using a 14" SCT, Meade DSI Pro. 35 x 40 sec stacked images at f/5. This is the main "chunk" of the fragmenting comet 73P Schwassmann-Wachmann imaged in Bootes on the evening of April 17 2006.

Taken on 14th May 2004 from the Chiltern Observatory, Amersham using an LX200, Vesta SC1 camera with a focal reducer and IR filter at f/4. 50 x 5 second images. AVI of images comected using K3CCDTools and processed using Iris to apply dark and flat fields, register on the comet, and sum the images. Some pattern noise was removed with the FFT commands. Gamma was increased in Registax2 to try to make the tail more visible. Some sort of strucure is visible in the inner coma on the right hand side (towards the Sun).

30 second exposure

1 minute exposure

30 second exposure

30 second exposure. WAS Astrophoto Award 1997

2 min exposure at f/8 40mm

Apogee AP-6 CCD camera on 205mm f/5.6 telephoto lens

Olympus OM1 tripod mounted 50mm lens for 20 seconds

Ektachrome Elite 400 135mm lens f/2.8 for 3 minutes. WAS Astrophoto Award 1997

Taken while spending an evening with Richard, Carol and Pat at Woodrow Good seeing with great company & clear skies.............P.Phillips 14/4/2015.

Date: 6/3/15 Telescope : Canon EF 200 at F4 on ioptron Skytracker Camera : Astromodded Canon 450 D Filters: Astronomik CLS Processing: Deep sky stacker and PS CS 2

Date taken: 20th April 2015 at 8pm

Camera: Canon EOS 400D

Location: Nelltlebed, Near Henley on Thames