AT 2018asx
RA/DEC (2000)
09:55:52.69 +68:58:40.90
148.969542 +68.978028
Type
---
Redshift
---
Source Group
XOSS
Discovery Date
2018-04-09 15:05:10
TNS AT
Y
Public
Y
Host Name
M81
Discovery Mag
20.6
Filter
Clear-
Discoverer/s
Zhijian Xu, Xing Gao
Spectra
No Data
Light Curves
FilterTel / InstObs-date rangePhotometry
Clear-Other_Other2018-04-07 14:15:55 - 2018-04-09 15:05:102
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
269012018-04-09 15:05:1020.621.5VegaMagClear-Other_Other300Zhijian Xu, Xing Gao0.6-m f/8 Ritchey-Chretien telescope + unfiltered CCD.
269002018-04-07 14:15:5521.5VegaMagClear-Other_Other300Xing Gao[Last non detection] 0.6-m f/8 Ritchey-Chretien telescope + unfiltered CCD.
AT Reportings
IDTime received (UT)SenderReporter/s (Discoverer/s)GroupRADECDiscovery date (UT)Discovery Mag.FilterRelated filesAT TypeInternal nameAssoc. GroupsEnd prop. periodRemarks
177172018-04-10 16:11:13Zhijian XuZhijian Xu, Xing GaoXOSS09:55:52.69+68:58:40.902018-04-09 15:05:1020.6Clear-PNVXMr5ZXXOSSZhijian 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.
Related files
FileFile TypeCommentsLast Modified (UT)Modified By
tns_2018asx_atrep_17717_XOSS.jpgGraphics2018-04-10 16:27:51Zhijian Xu
Classification Reportings
No Data

Comments

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.