15 September 2021 at 12:54 pm #575046
Anyone know anything about this nova?
While looking for a guide star for a spectrum of LL And. I noticed a 10th mag star about 5 arcmin to the east. Looking it up in SIMBAD I was surprised to see it described as Nova And 1979. (If it is mag 10 now that should have been a very notable nova I would have thought !) The only reference to it though is this one from 1987 on the rate of production of galactic novae where it appears in a list of novae, discovered by Wild on16th Sept and mag 13 at max. It does not however appear in a comprehensive list of novae maintained by Bill Gray for example. Anyway, I took a spectra and will reduce it to see what it looks like
Robin15 September 2021 at 2:05 pm #584675
Tracked down the discovery IAUC. Difficult to say without knowing the precision of the coordinates given there but they could be up to ~1 arcmin away from the ones in SIMBAD for this star so not sure yet where the association comes from15 September 2021 at 2:14 pm #584676
I’ve found this reference to Nova 1979 QB, the link below gives a reference to The Astronomer Vol 16 ppage 152
I wonder if this is the same object?
Could the difference be epoch 1950 for the IAU notification as opposed to epoch 2000 for Simbad15 September 2021 at 2:34 pm #584677
The answer perhaps lies closer to home !
From VSSC #83 page 7
931207 LL And B.Marsden, CBAT, Paul Wild, Switzerland, Steve
Howell, USA, T.Kato, Japan, Bruce Margon, USA Object reported as a ‘nova’ in IAUC 3412 (1979) seen again in outburst by Tony Vanmunster, Belgium 1993 Dec 7 mag 14.Ov. Confirmed by Poyner. Kato obtains CCD images at Ouda on Dec 9 V=14.0. Suggests position needs correction. Howell obtains spectra and paper planned!
Robin15 September 2021 at 2:34 pm #584679
Could it also be 1979 QB if anyone has got The Astronomer vol 16 page152 to compare the information with the above.15 September 2021 at 2:41 pm #584678
Yes that is a a copy of the IAUC with a request for observations. (confusingly that IAUC covers several diverse object discoveries)
“Could the difference be epoch 1950 for the IAU notification as opposed to epoch 2000 for Simbad”
I was comparing with the FK4 (1950) coordinates for the object in SIMBAD
Robin15 September 2021 at 2:48 pm #584680
The TA article
confusingly IAUC 3412 covers reports on several diverse objects including asteroid 1979QB
Robin15 September 2021 at 3:15 pm #584681
AHH so that was the elusive 1979 QB an asteroid, at least its looking like Nova And 1979 and LL And are the same with an error in the position.
The last few nights here have been very hazy with patchy cloud and andromeda is currently over a row of LED streetlights from my house!15 September 2021 at 8:33 pm #584683
Here is the spectrum of BD+25 103, also identified (likely incorrectly) in SIMBAD as Nova And 1979, compared with an F2v standard
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