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 GLADE (Q3C) record

Item Value
ID 23
Hyperleda (PGC) Code 41095
GWGC Name NGC4458
Hyperleda (PGC) Name NGC4458
2MASS Name 12285753+1314308
SDSS-DR12 Name null
RA (J2000°) 187.239716
Dec (J2000°) 13.241916
Luminosity Distance (Mpc) 38.390567921
δLuminosity Distance (Mpc) ± None
z (Redshift) 0.008901
B Magnitude (apparent) 12.778
δB Magnitude (apparent) ± None
B Magnitude (absolute) None
J Magnitude (apparent) 10.344
δJ Magnitude (apparent) ± 0.015
H Magnitude (apparent) 9.677
δH Magnitude (apparent) ± 0.02
K Magnitude (apparent) 9.451
δK Magnitude (apparent) ± 0.023
Flag1 G
Flag2 3
Flag3 0