Observation by Chris Dole: Gamma Virginis (Porrima).

Uploaded by

Chris Dole

Observer

Chris Dole

Observed

2017 May 23 - 20:53

Uploaded

2017 May 24 - 00:09

Objects

Porrima

Equipment

180mm Maksutov Cassegrain @f30
ASI224mc camera.
ZWO ADC.
EQ6 pro mount.

Location

Newbury. G.B.

Target name

Porrima

Title

Gamma Virginis (Porrima).

About this image

Very good seeing conditions are needed to image closer binaries and I was lucky enough to have excellent seeing on this occasion. Porrima consists of a pair of white F type stars of equal 3.5 magnitude. They are 38 light years away with an orbital period of 169 years. Currently they have a separation of 2.55 arc seconds and are slowly widening.

Files associated with this observation

Porrima 2017-05-23 2153UT.jpg (2.6 kB)

Like this image

David Swan, Jeremy Shears, David Basey, Graham Winstanley, Peter Mulligan, Martin Lewis, Dawson, Peter Carson, Steve Knight, Nick Hewitt

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.

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.