Irydeo Observatory

AT2021vfg

AT2021vfg (CV)

10/08/2021

Separator
Magnitude
14.56
RA
21:41:08.422
DEC
27:50:59.82
Telescope
CFF RC300
Camera
QHY42Pro
Mount
Eq8
Resolution
0.95 arcs/pixel
Filters
-
Capture time
180x5s

AT2021vfg

On August 7, 2021, ASAS-SN reported the discovery of a cataclysmic variable, classified as AT2021vfg.

As we can see after consulting multiple surveys, at that point where now shines a star with magnitude 14.5, there is almost no trace of anything (it is intuited in some a very weak star, which could be the precursor).

Analysis

Stars differential phot.

Name RA (J2000) DEC (J2000) Mag. (G) Type
AT2021vfg 21:41:08.422 27:50:59.82 -- Target (T1)
1800 7816 2573 7808 000 325.29945898820 27.87496467292 14.299 C2
1800 7785 6772 1104 640 325.23475189524 27.84477823858 14.781 C3

Catálogo: Gaia GR2 (band G)

Results

In its evolution, we can see that its brightness is decreasing by 0.15 magnitudes every day.

Date Magnitude Filter
2021/08/09.902 14.563 C (Clear)
2021/08/10.914 14.709 C (Clear)
2021/08/12.953 15.090 C (Clear)

Let's show it graphically:

Observatory

Additional information:

Object Inner Outer
7 11 15