Record flare of BL Lacertae
Taken by Filipp Romanov on October 6, 2020 @
Remote from Burke-Gaffney Observatory, Canada
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Details:
BL Lacertae is the prototype of the class of active galactic nuclei known as "BL Lacertae objects". This blazar has been very active in recent months and on October 6, 2020, a record flare of this object was recorded in X-rays http://www.astronomerstelegram.org/?read=14069 and gamma-rays http://www.astronomerstelegram.org/?read=14072 . I have been observing this blazar with a remote telescope since September 2, 2020. I was lucky and got two images of BL Lac during this record flash. I report my magnitude measurements of BL Lac with remote telescope (0.61-m f/6.5 corrected Dall-Kirkham) of Burke-Gaffney Observatory in Halifax, Nova Scotia, Canada. Images were obtained on October 6, 2020 with Astrodon V filter (photometric Johnson V) and with Astrodon R filter (photometric Cousins R) for 300 and 180 seconds. The following magnitudes were measured from comparison to nearby stars from the AAVSO star chart X25633GT: V = 12.633 /- 0.002 (JD 2459128.655463) and R = 12.081 /- 0.002 (JD 2459128.662616). Images are available here: http://www.ap.smu.ca/~bgo/sm/images/BLLAC-ID12305-OC145635-GR5173-V.fit and http://www.ap.smu.ca/~bgo/sm/images/BLLAC-ID12306-OC145636-GR5174-R.fit This is the brightest magnitude of the blazar from the start date of my observations on September 2, 2020. The photos were taken during the flare, but possible at a time not of the maximum value, although the brightness in the optical range was still very high.
Best regards, Filipp Romanov: 23-year old amateur astronomer (since 2009) from Russia, the discoverer of 70 variable stars: https://filipp-romanov.livejournal.com/27664.html and other astronomical objects.
Photographer's website:
No URL provided.
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