British Astronomical Association

Supporting amateur astronomers since 1890


Gallery

Observers

Objects

Sky map

Histogram

FAQs

Search

Observation by Peter Tickner: Comet 21P Giacobini-Zinner and Sharpless...

Uploaded by

Peter Tickner

Observer

Peter Tickner

Observed

2018 Jul 25 - 01:00

Uploaded

2018 Jul 26 - 21:55

Objects

21P Giacobini-Zinner

Planetarium overlay









Constellation

Cepheus

Field centre

RA: 23h02m
Dec: +62°53'
Position angle: -0°31'

Field size

1°32' × 1°50'

Equipment
  • Atik Horizon colour CMOS camera
  • Baader-S filter
  • 80mm triplet refractor
  • EQ8 mount
Exposure

High gain used

Location

Suburban Berkshire

Target name

21P Giacobini-Zinner

Title

Comet 21P Giacobini-Zinner and Sharpless 2-155

About this image

A series of eighteen three-minute subframes stacked against stars and comet separately.  I'd intended to take the image the previous night when the Comet and the Cave nebula were closer but forgot after an evening outreach telescope demo for a local school.

Files associated with this observation
Like this image
Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of work by third parties is expressly forbidden without the consent of the copyright holder. By submitting images to this online gallery, you grant the BAA permission to reproduce them in any of our publications.

© British Astronomical Association 2025

Registered charity no. 210769
Registered company no. 117572

For more information including contact details, click here.

Our Terms of Use are here.

Our Privacy Policy is here.

The BAA image gallery was designed and
built by Dominic Ford.

Image gallery software © Dominic Ford 2020–2024