The Steward Alerts for Science System (SASSy) provides access to various alerts and cross-correlation with catalogs. We provide support for queries to alerts and database(s) sourced from the Galaxy List for the Advanced Detector Era (GLADE), the Gravitational Wave Galaxy Catalog (GWGC), (ad-hoc) alerts from the Laser Interferometer Gravitational-Wave Observatory (LIGO), the Transient Name Server (TNS) and the Zwicky Transient Facility (ZTF). Further information is available in the (help) and (api) sections.

These pages are adapted from the code from LCOGT (Las Cumbres Observatory Global Telescope) which delivers the MARS (Make Alerts Really Simple) website.



Details for GWGC record

Item Value
ID 4
Name UGC04459
RA (J2000°) 8.56866
Dec (J2000°) 66.182
B Magnitude (apparent) 14.2
δB Magnitude (apparent) ± 0.3
B Magnitude (absolute) -13.53
δB Magnitude (absolute) ± 0.3
Distance (Mpc) 3.52
δDistance (Mpc) ± 0.35
Position Angle (°) 119.0
Hyperleda (PGC) Code 24050
Morphological (TT) Code 9.9
Major Axis (′) 1.6
δMajor Axis (′) ± 0.515
Minor Axis (′) 1.392
δMinor Axis (′) ± 0.477
Axis Ratio 0.87
δAxis Ratio ± 0.102