RA/DEC (2000)
09:55:52.690 +68:58:40.90
148.969542 +68.978028
Type
---
Redshift
Reporting Group
XOSS
Discovering Data Source
XOSS
Discovery Date
2018-04-09 15:05:10.000
TNS AT
Y
Public
Y
Host Name
M81
Discovery Mag
20.6
Filter
Clear-
Reporter/s
Zhijian Xu, Xing Gao

Light curves

 Other_Other_Clear
   
Pointer position (MJD, Mag, Abs.Mag): (0.00, 0.00, 0.00)
No Data
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
Clear- Other_Other 2018-04-07 14:15:55 - 2018-04-09 15:05:10 2458216.0943866 - 2458218.128588 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
26901 2018-04-09 15:05:10 2458218.128588 20.6 21.5 VegaMag Clear- Other_Other 300 Zhijian Xu, Xing Gao 0.6-m f/8 Ritchey-Chretien telescope + unfiltered CCD.
26900 2018-04-07 14:15:55 2458216.0943866 21.5 VegaMag Clear- Other_Other 300 Xing Gao [Last non detection] 0.6-m f/8 Ritchey-Chretien telescope + unfiltered CCD.
AT Reports
ID Time received (UT) Sender Reporter/s Reporting group Disc. Data Source RA DEC Discovery date (UT) Discovery Mag. Filter Related files AT Type Host name Internal name Assoc. Groups End prop. period Remarks ADS Bibcode Unreal Auto classification
17717 2018-04-10 16:11:13 Zhijian Xu Zhijian Xu,Xing Gao et al. XOSS XOSS 09:55:52.690 +68:58:40.90 2018-04-09 15:05:10.000 20.6 Clear- PNV M81 XMr5ZX XOSS Zhijian Xu and Xing Gao report the discovery of a possible nova in M81. The transient is approximately Mag. 20.6 on severl 300-s survey images (limiting mag about 21.5) taken by Xing Gao in Xingming Observatory Sky Survey(C42) around Apr. 09.62859 UT using a unfiltered CCD (+ 0.6-m f/8 Ritchey-Chretien telescope). The transient approximately located at R.A.=09h55m52.69s +68d58'40".9 (equinox 2000.0). Which is about 104.7" east and 314.1" south of the center of the M81. Nothing is visible at this position on archival images taken on Apr 07.59439 (limiting mag 21.5).NET UCAC-4 XMr5ZX C2018 04 09.62859 09 55 52.69 +68 58 40.9 20.6 V C42.http://www.xjltp.com/XOSS/XMr5ZX/XMr5ZX.htm. Xingming Observatory(C42) - NEXT, Mt. Nanshan, 0.6-m f/8 Ritchey-Chretien telescope and CCD. 2018TNSTR.473....1X N
Related files
File Comments Last Modified (UT) Modified By
tns_2018asx_atrep_17717_XOSS.jpg 2018-04-10 16:27:51 Zhijian Xu
No Data

Comments

Vîntdevară
Dumitru Ciprian

Transient confirmation

Ciprian Vîntdevară, I confirmation of an apparent transient in M 81, RA = 09 55 52.85, DE = +68 58 43.1 (mag. 16.9) on unfiltered CCD frames, taken with a 0.2-m reflector on in Barlad Observatory, Barlad, Vaslui, Romania.