Discovery certificate for object 2005nj
TNS Astronomical Transient Report No. 38449 [ 2019TNSTR1059....1T ]

Date Received (UTC): 2019-06-23 12:58:04
Sender: Mr. Richard Nowell
Source Group: None

Ine Theunissen-Limpens report/s the discovery of a new astronomical transient.

IAU Designation: AT 2005nj
Coordinates (J2000): RA = 15:25:51.357 (231.463988) DEC = +13:15:00.65 (13.25018)
Discovery date: 2005-05-10 10:22:30 (JD=2453500.9322917)

Potential host galaxy: SDSS J152551.89+131507.0
Host redshift: 0.07408

Remarks: This transient was first noticed by Ine Theunissen in a discussion started by participant AstroGordo on the Galaxy Zoo website here: https://www.zooniverse.org/projects/zookeeper/galaxy-zoo/talk/subjects/34060867. This transient is listed in SDSS as Type=Star (SDSS J152551.35+131500.6), but it is not visible in the DECaLS or Pan-STARRS surveys from a decade later. Participants Averil Drummond and Sylvia Beer also took part in the discussion.

Photometry

Discovery (first detection):
Discovery date: 2005-05-10 10:22:30
Flux: 20.17 ABMag
Filter: r-Sloan
Instrument: SDSS-Spec
Telescope: Sloan Digital Sky Survey

Remarks: The r-band Apparent magnitude was taken from the SDSS Explorer page for SDSS J152551.35+131500.6 (http://skyserver.sdss.org/dr14/en/tools/explore/Summary.aspx?id=1237668310015148330). An r-band Absolute magnitude of -17.38 was also calculated.

Last non-detection:
Archival info: SDSS

Details of the new object can be viewed here: https://wis-tns.weizmann.ac.il/object/2005nj