Observation by Tim Haymes: Transient AT 2023omg

Uploaded by

Tim Haymes

Observer

Tim Haymes

Observed

2023 Aug 06 - 01:12

Uploaded

2023 Aug 06 - 11:18

Objects

ε-UMi
Variable star

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Constellation

Ursa Minor

Field centre

RA: 16^h45^m
Dec: +81°58'
Position angle: +1°38'

Field size

0°33' × 0°20'

Equipment

C11 at F4.2
QHY174mGPS
EQ8
SharpCap and EQMOD
Astrometrica

Exposure

10 x 30s

Location

N Oxfordshire

Target name

AT 2023omg

Title

Transient AT 2023omg

About this image

An Optical transient recorded by ZTF (Palomar 1.2m, Oschin) discovered at magnitude at 12.7 on July 31 0524UT
Well its still reasonably bright at r mag 13.3 on this image taken with my C11 with F3.3 reducer working at F4.2. This was the telescope config i was using for an asteroid occultation that i was monitoring, so this is not optimised for imaging. (Note the coma and internal reflections). Astrometrica using UCAC4 as the cat source (Uncalibrated)

Files associated with this observation

AT_2023omg_20230806_0112_thaymes.jpg (74.5 kB)

Like this image

Mike Harlow, Dr Paul Leyland, Jeremy Shears, Robin Leadbeater

Comments

Mike Harlow, 2023 Aug 06 - 17:57 UTC

That's interesting. Do you have a link to the discovery page? More information would be useful...any spectra yet?

Thanks,

Mike.

Dr Paul Leyland, 2023 Aug 06 - 18:38 UTC

https://www.wis-tns.org/object/2023omg gives some useful information.

www.wis-tns.org is worth bookmarking IMO.

Robin Leadbeater has provide additional information to that page, specifically http://www.cbat.eps.harvard.edu/unconf/followups/J16420534+8156125.html

Mike Harlow

Tim Haymes, 2023 Aug 08 - 17:29 UTC

The OT was reported in The Astronomer circular E3809, from which the link above is given. Any additional info/observation/spectra would be interesting. Tomorrow night might be clear in England.

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