TNS Classification Report No. 13777 [ 2022TNSCR3275....1B ]
Date Received (UTC): 2022-11-11 20:36:21 Sender: Hamish Barker
Group: None
Hamish Barker report/s a classification of object: AT 2022yrc
Type: Varstar
Remarks: variable star HD57481, type B5V is indicated less than 1 arcsec from position indicated. Spectrum observed appears consistent with this classification, with Balmer series absorption lines except Halpha in weak emission.
The following Classification spectrum was provided:
Obsdate: 2022-10-30 12:08:38
Instrument: Other
Telescope: Other
Remarks: Spectrum taken with 250mm newtonian, JTW L200 littrow spectrograph, 180lpmm grating. Reference star HD62226 observed at same airmass for calibration. Spectrum relative flux units not absolute flux calibrated.
Details of the object and its spectra can be viewed here: https://www.wis-tns.org/object/2022yrc
Date Received (UTC): 2022-11-11 20:36:21 Sender: Hamish Barker
Group: None
Hamish Barker report/s a classification of object: AT 2022yrc
Type: Varstar
Remarks: variable star HD57481, type B5V is indicated less than 1 arcsec from position indicated. Spectrum observed appears consistent with this classification, with Balmer series absorption lines except Halpha in weak emission.
The following Classification spectrum was provided:
Obsdate: 2022-10-30 12:08:38
Instrument: Other
Telescope: Other
Remarks: Spectrum taken with 250mm newtonian, JTW L200 littrow spectrograph, 180lpmm grating. Reference star HD62226 observed at same airmass for calibration. Spectrum relative flux units not absolute flux calibrated.
Details of the object and its spectra can be viewed here: https://www.wis-tns.org/object/2022yrc