V404 Cyg in outburst on POSS image!

Affiliation

Vereniging Voor Sterrenkunde, Werkgroep Veranderlijke Sterren (Belgium) (VVS)

Tue, 08/05/2014 - 17:59

Hi,

V404 Cyg is in outburst on the POSS2/UKSTU Blue image in the VSX! Is it possible to track down the date this image has been taken? The last known outburst was in 1989.

Regards,

Eddy

FRF

Affiliation

Magyar Csillagàszati Egyesület, Valtózocsillag Szakcsoport (Hungary) (MCSE)

Tue, 08/05/2014 - 18:30

Hi Eddy,I cannot get the

Hi Eddy,

I cannot get the POSS/UKTSU image via VSX, but downloaded here:
http://archive.stsci.edu/cgi-bin/dss_form?target=V404+Cyg&resolver=SIMB…

I don't see V404 Cyg being too bright, estimated about 16.4B.
The date of the image: 30.36 June, 1989.

Clear skies,

Robert

MUY

Affiliation

Vereniging Voor Sterrenkunde, Werkgroep Veranderlijke Sterren (Belgium) (VVS)

Tue, 08/05/2014 - 19:10

V404 Cyg outburst

Hi Robert,

It is definitely in outburst, much brighter than in quiescence. It was already fading. Full outburst was in May 1989.

Thanks for finding this out!

Regards,

Eddy

V404 Cyg in outburst on POSS image!

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V404 Cyg in outburst on POSS image!

Announcement: New Forums

We are excited to announce the launch of our new forums! You can access it forums.aavso.org. For questions, please see our blog post. The forums at aavso.org/forum have become read-only.