AT 2020cwh
RA/DEC (2000)
11:20:20.000 +12:59:25.00
170.083333 +12.990278
Type
---
Redshift
Related AstroNotes: 2020-44
Reporting Group
None
Discovering Data Source
None
Discovery Date
2020-02-18 12:00:00.000
TNS AT
Y
Public
Y
Discovery Mag
11
Filter
Clear-
Reporter/s
John Stevenson
Spectra
No Data
Light Curves
FilterTel / InstObs-date rangePhotometry
Clear-Other_Other2020-02-15 12:00:00 - 2020-02-18 12:00:002
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
1212212020-02-18 12:00:001118ABMagClear-Other_Other780John StevensonPhoto taken with Meade 14 LX200, Atik infinity camera. Focal Reducer 0.63x. Shows object/Nova activity within spiral arm of M66. Estimated mag 11
1212202020-02-15 12:00:0018ABMagClear-Other_Other600John Stevenson[Last non detection] Photograph taken at this time shows no nova activity in that vicinity Photographed with Meade 14 LX200 with Atik infinity camera and 0.63x focal reducer
AT Reports
IDTime received (UT)SenderReporter/sReportting groupDisc. Data SourceRADECDiscovery date (UT)Discovery Mag.FilterRelated filesAT TypeInternal nameAssoc. GroupsEnd prop. periodRemarks
621992020-02-19 11:39:26John StevensonJohn Stevenson11:20:20.000+12:59:25.002020-02-18 12:00:00.00011Clear-PSNPossible Supernova/nova activity in spiral arm of Messier 66 Estimated Magnitude 11
Related files
FileFile TypeCommentsLast Modified (UT)Modified By
tns_2020cwh_atrep_62199.jpgGraphics2 Photos taken 2020:02:15 and 2020:02:18 as described above. This photo shows bright object at 7 o'clock in spiral arm2020-02-19 11:39:26John Stevenson
tns_2020cwh_atrep_62199_0.jpgGraphicsPhoto taken 2020:02:15. Shows no sign of nova activity in spiral arm2020-02-19 11:39:26John Stevenson
Classification Reports
No Data

Comments

The source is not detectced on 2020-02-20 20:37 UT with the Celestron 14 telescope from Osservatorio Astronomico Margherita Hack, Firenze.

Another suspected artifact is present on the discovery image.
 

Target not detected at the coordinates RA: 11.3389 Dec: 12.9903 with Slooh Canary Four Solar System Telescope on 2020-02-21 at 03:49 UTC. 

More like 14 mag in the discovery image. Not a known (natural) Solar System body. There is another (probable) artifact of ~14 mag farther to the ESE in the discovery image.

Observations with LT SPRAT on behalf of the SIRAH team did not detect 2020cwh on 2020-02-20 00:34:41 UT

The source is not detected with the Palomar 60-inch telescope. Given the ecliptic latitude, this was likely a solar system object coincident with the galaxy.