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Possible Nova in the Hyades field? (!)

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Matthew Templeton's picture
Matthew Templeton
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Joined: 2010-03-12

An ATel (#4513) just came through suggesting a possible 6th magnitude transient in the Hyades field.

Coordinates are 04:23:29, +17:58:29, 10" error.  A quick check of VSX showed nothing in that position.  Minor Planet Checker also showed nothing.

All followups encouraged, especially from the spectroscopists.  It is possible this is not a real detection, so confirmation of the transient is most critical.

A Special Notice will go out shortly.

hot pixel?
FRF's picture
FRF
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Joined: 2010-08-09

Unfortunately the sky is foggy here.

Looking at the image posten on Shelton's website I suspect it can be a hot pixel. It would be good to check the original raw images (if they exist at all).

A flare of Aldebaran ? Raw
econseil's picture
econseil
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Joined: 2011-03-22

A flare of Aldebaran ?

Raw images would help, for sure. Bad weather here too, unable to confirm anything :(

Munatry: nothing visible
FRF's picture
FRF
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Joined: 2010-08-09

"there is nothing within 10 arcmin of the given position which is not already present on the Palomar prints."
(Ulisse Munari posted on vsnet-alert and other lists)
 

The images available linked
wel's picture
wel
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Joined: 2010-07-26

The images available linked on ATEL make it look like a red sub-pixel of a Bayer matrix from a DSLR image took a cosmic ray hit ...

and the red "hot pixel"
wel's picture
wel
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Joined: 2010-07-26

and the red "hot pixel" doesn't have the same PSF as the other stars - which are noticably elliptical.

I took an image of this zone
econseil's picture
econseil
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Joined: 2011-03-22

I took an image of this zone using a remote telescope on the Canary islands.

Nothing visible.

http://imageshack.us/a/img823/5117/042329p1758292012102321.png

Special Notice 300 Cancelled
Matthew Templeton's picture
Matthew Templeton
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Joined: 2010-03-12

Thanks to everyone for the quick follow up observations and analysis -- I think the transient noted in ATel #4513 has been shown not to exist.  I have issued Special Notice 301 to cancel the request made in SN #300.

AAVSO 49 Bay State Rd. Cambridge, MA 02138 aavso@aavso.org 617-354-0484