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 (Q3C) record

Item Value
ID 69
Name NGC6907
RA (J2000°) 20.41851
Dec (J2000°) -24.8094
B Magnitude (apparent) 11.47
δB Magnitude (apparent) ± 0.06
B Magnitude (absolute) -21.77
δB Magnitude (absolute) ± 0.09
Distance (Mpc) 45.19
δDistance (Mpc) ± 6.78
Position Angle (°) 66.7
Hyperleda (PGC) Code 64650
Morphological (TT) Code 3.9
Major Axis (′) 2.626
δMajor Axis (′) ± 0.845
Minor Axis (′) 1.943
δMinor Axis (′) ± 0.666
Axis Ratio 0.74
δAxis Ratio ± 0.087