AAVSO Home
The International
Variable Star Index
Search
Submit
Register
Log In
Account
About
Welcome, Guest. You are not logged in.
Log in
Revise
New Search
Latest Details
Log in to retrieve additional aliases from SIMBAD.
Name
ASASSN-21sq
AAVSO UID
000-BPD-498 (No observations)
Constellation
Sagittarius
Sequence
J2000.0
18 05 08.97 -31 59 36.2 (271.28737 -31.99339)
Search nearby
B1950.0
18 01 53.51 -31 59 51.6
Galactic coord.
359.472 -5.174
Other names
(Internal only)
2MASS J18050897-3159361
CMC15 J180508.9-315935
GSC2.3 S9SJ034520
VVV J180508.95-315936.14
WISE J180508.96-315936.1
(Not logged in)
Add name
Variability type
M:
Spectral type
--
Mag. range
>16.6 - <19.7 g
Discoverer
ASAS-SN
Epoch
--
Outburst
--
Period
--
Rise/eclipse dur.
--
Remarks
Some references may be clicked to view in new window. Roll over index number to view submission details.
1
Otero, Sebastian Alberto
VSP Note: 17.7 mag. star 2.4" to the NNW, 18.3 mag star 3" to the NNE and 7" to the E.
(Not logged in)
Add remark
References
Click reference title/citation to view in new window. Roll over index number to view submission details.
1
ASAS-SN Transients (Shappee et al., 2014)
2014ApJ...788...48S
External Links
Links open in a new window. Not all links may be valid for this particular target.
Location
-- Select --
AAVSO Variable Star Plotter
AAVSO Light Curve
AAVSO WebObs
APASS
AAVSOnet EPD
SIMBAD
SIMBAD Clickable Map
SIMBAD Coordinate query
VizieR Search
Aladin Java Applet
CDS Portal
CDS Biblio
SDSS Navigate Tool
ASAS-SN Sky Patrol
ASAS Light Curve
NSVS
CRTS
SuperWASP
Kamogata Wide-field Survey (KWS)
Go
Select a
Location
for more details.
Images
Please review Digitized Sky Survey
Acknowledgment
and
Copyright
.
Image not downloaded. Click
Retrieve Image
to download and view.
Retrieve image
Supporting Documents
There are currently no supporting documents on file for this star.
(Not logged in)
Add document
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
1
Otero, Sebastian Alberto
2021-10-05 01:30 UTC
Minimum magnitude from ATLAS-REFCAT2. Type from amplitude. Gaia EDR3 position.
Guidelines
FAQ
Manual
Forum
Variability Types
Passbands
Copyright
Acknowledgments
Privacy
Contact
Help us
The International Variable Star Index
© 2005-2025 American Association of Variable Star Observers (AAVSO)
Version 1.1 [C]
172.30.2.216