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Swift Trigger: 1183217

Presumed name: GRB 230805B

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BAT 13h 50m 59.28s, +31° 11′ 06.0″
position:(207.747, 31.185 ± 180″)
XRT 13h 50m 58.27s, +31° 11′ 27.7″
position:(207.74281, 31.19102 ± 1.9″)
UVOT No position available.
Galactic NHI:1.35×1020 cm-2
Galactic E(B-V):0.016 mag
Best RA:13h 50m 58.27s= 207.74281 d
Best Dec:+31° 11′ 27.7″= 31.19102 d
Gal Lat:76.4
Gal Long:53.84
Sun angle:66.82°, -4.8 hr East of Sun

GCN Notices for this burst.

View this region in Aladin.

Observability of this burst for Swift.

Sun angle for this burst.

UVOT data

No UVOT images are currently available.


SPER results page for this trigger.

Image of the SPER data

There are 8 SPER messages, and 1 objects have been found

See the SPER page for details of how this position was produced.

Known transients within 5′ of the GRB

Click on the offset to view the transient announcement.

Offset (′′)RA DecDate reportedSource MiscQuery

Catalogue Searches. Searched 200′ around XRT position

Click on the distance to view the full details (not available for sources from the SSS catalogue). Click on the column headers to sort the table on that column (click again to invert sort order).


RA*Dec*SIMBAD name Query
94.2207.762531.1710Gaia DR3 1457233097308653952G=19.214901Query vizier around this object
137.6207.771731.2201TYC 2544-597-1B=12.89, G=11.776328, H=10.505, J=10.802, K=10.449, V=12.23Query vizier around this object
191.4207.762831.2414NVSS J135103+311431Query vizier around this object
194.2207.695631.1552LAMOST J135046.95+310918.8G=19.523922Query vizier around this object

There are 4 SIMBAD objects within the position error. The full list is here.

* RA/Dec in equinox J2000

X-ray sources

RA*Dec* Source table2Observatory Query

Queried the X-ray MASTER catalogue.

* RA/Dec in equinox J2000

1Energy band for count-rate is mission specific.


RA*Dec*Redshift CatalogueQuery
6.1207.744631.1908Mag=21.7NEDQuery vizier around this object
24.3207.750431.1911NEDQuery vizier around this object
24.7207.750831.1900Mag=22.5NEDQuery vizier around this object
26.4207.750931.1885R=19.2, g=19.9, i=18.9, u=21.6, z=18.7SDSSQuery vizier around this object
26.4207.750831.1886Mag=19.9NEDQuery vizier around this object
28.4207.740831.1986NEDQuery vizier around this object
29.0207.734631.1872Mag=23.6NEDQuery vizier around this object
32.4207.732931.1881R=22.6, g=23.6, i=23.8, u=25.0, z=22.4SDSSQuery vizier around this object
32.4207.733831.1958Mag=21.9NEDQuery vizier around this object
32.4207.732931.1881Mag=22.3NEDQuery vizier around this object


There are 498 galaxies within the position error. The full list is here.

* RA/Dec in equinox J2000

Magnitudes depend on the catalogue. e.g. For Sloan, R is the Sloan r mag, not the Johnson R from APM, for example


RA*Dec* CatalogueQuery
6.1207.744831.1907I=20.2, R=20.7, g=21.7, u=23.9, z=20.2SDSSQuery vizier around this object
6.5207.744931.1908B2=21.9, I=19.6USNO-B1Query vizier around this object
24.7207.750831.1901I=21.9, R=21.9, g=22.3, u=22.8, z=21.7SDSSQuery vizier around this object
26.5207.750931.1886B1=20.6, B2=20.0, I=18.4, R1=19.3, R2=18.6USNO-B1Query vizier around this object
29.0207.734531.1873I=22.1, R=22.7, g=23.5, u=24.4, z=21.5SDSSQuery vizier around this object
32.3207.734831.1969B1=21.0, B2=21.6, R2=20.3USNO-B1Query vizier around this object
33.7207.734331.1969I=21.0, R=21.0, g=21.5, u=22.5, z=20.8SDSSQuery vizier around this object
35.3207.736031.1831I=21.5, R=21.9, g=22.4, u=23.9, z=21.3SDSSQuery vizier around this object
40.8207.753731.1846B1=20.9, B2=21.5USNO-B1Query vizier around this object
42.2207.738531.2022I=24.2, R=24.9, g=25.6, u=22.5, z=23.1SDSSQuery vizier around this object

Queried USNO-B1, SDSS, 2MASS.

There are 167 stars within the position error. The full list is here.

* RA/Dec in equinox J2000

Magnitudes depend on the catalogue. e.g. For Sloan, R is the Sloan r mag, not the Johnson R from APM, for example.