ASASSN-16kd: probable nova (11 mag) near the Galactic center

Affiliation
Association Francaise des Observateurs d'Etoiles Variables (AFOEV)
Wed, 09/07/2016 - 21:07

"ASAS-SN Discovery of A Likely Galactic Nova ASASSN-16kd" (ATel #9469)

Object: ASASSN-16kd
RA (J2000): 17:22:51.426
DEC (J2000): -31:58:36.28
Gal l: 354.78°
Gal b: 2.463°
Disc. UT Date: 2016-09-07.00
Disc. V mag: 11.4

http://www.astronomerstelegram.org/?read=9469

Affiliation
Association Francaise des Observateurs d'Etoiles Variables (AFOEV)
ASASSN-16kb: another ASAS-SN discovery in the same region

RA 17:42:57.68, DEC -33:25:42.9 (J2000.0)

"bright transient near the Galactic center (l/b=355.869/-1.87), on the rise, V=13.3 on and before 2016-08-26.0, V=13.1 on 2016-08-31.09, V=12.8 on 2016-09-02.99, V=12.3 on 2016-09-07.00"

Affiliation
American Association of Variable Star Observers (AAVSO)
Comp stars

I'd love to do a follow-up observation tonight if possible; perhaps even show this to my students.  However, aavso charts might not be available for a day or so.  Should I go to VizieR or some other data base to get comp stars in the mean time?

Affiliation
Association Francaise des Observateurs d'Etoiles Variables (AFOEV)
ASASSN-16kd = PNV J17225112-3158349

This probable nova was posted on 2016 Sept. 8.22 UT (8.5 hours after Kris Stanek's announcement in ATel #9469) as PNV J17225112-3158349 on TOCP:

http://www.cbat.eps.harvard.edu/unconf/followups/J17225112-3158349.html

"2016 09 06.4808
Shigehisa Fujikawa, Kan'onji, Kagawa, Japan, reported his discovery of this PNV to NAOJ. He discovered it at 11:32 UT on 2016 Sept 6 and reported it to NAOJ at 13:34 UT on 2016 Sept 6. He used a 120-mm F3.5 lens for this discovery. This PNV seems to be the same as ASASSN-16kd which was later announced in ATel #9469 at 20:40 UT on Sept 7: http://www.astronomerstelegram.org/?read=9469"

Confirmation by Seiichiro Kiyota:
"2016 09 08.0623
I took confirmation images of this PN with 0.61-m f/6.5 CDK astrograph + FLI PL09000 CCD at iTelescope, Sierra Remote Observatory, Auberry, CA. USA, remotely. Photometric results were V=11.79 and Ic=9.33. Seiichiro Kiyota (Kamagaya, Japan)"

Regards,
Patrick

Affiliation
Variable Stars South (VSS)
ASASSN-16kd

I have taken a spectrum of ASASSN-16kd and can confirm that it is an early nova with broad Ha emission with an expansion velocity of about 1300km/s. There are features of a Fe nova also present.

I also took BVRI images but have not processed them yet.

Terry

 

Affiliation
Association Francaise des Observateurs d'Etoiles Variables (AFOEV)
Confirmation of ASASSN-16kd as a classical nova (ATel #9477)

"Confirmation of ASASSN-16kd as a classical nova in the optically thick stage"
ATel #9479; J. L. Prieto (UDP/MAS), L. Chomiuk, J. Strader (MSU), N. Morrell (LCO), K. Z. Stanek (OSU), B. J. Shappee (Carnegie Observatories)
http://www.astronomerstelegram.org/?read=9477

Affiliation
Association Francaise des Observateurs d'Etoiles Variables (AFOEV)
ASASSN-16kb and ASASSN-16kd are highly reddened Galactic novae

"Spectroscopic classification of ASASSN-16kb and ASASSN-16kd as highly reddened Galactic novae"
ATel #9479; J. L. Prieto (UDP/MAS), L. Chomiuk, J. Strader (MSU), N. Morrell (LCO), K. Z. Stanek (OSU), B. J. Shappee (Carnegie Observatories)
http://www.astronomerstelegram.org/?read=9479

Affiliation
American Association of Variable Star Observers (AAVSO)
AAVSO Alert Notice 550 on Nova Sco 2016 No. 2 (ASASSN-16kd)

AAVSO Alert Notice 550 reports on Nova Sco 2016 No. 2  = PNV J17225112-3158349 = ASASSN-16kd. Please see the notice for information, AAVSO observations, and observing instructions.

Many thanks and good observing,

Elizabeth Waagen, AAVSO HQ

Affiliation
American Association of Variable Star Observers (AAVSO)
V1656 Sco (ASASSN-16kd) observations needed

AAVSO Special Notice #424 requests multicolor observations of V1656 Sco (ASASSN-16kd = Nova Sco 2016 No. 2), which has apparently entered the dust-making phase, from now until it is lost behind the Sun. Please see the Special Notice for details and observing instructions.

Good observing,

Elizabeth Waagen, AAVSO HQ