Collaborative Occultation Resources and Archive (CORA)

Occultations | Observations | Reports | Info + Credits | JOA | Admin | Login

Stellar Occultation by (476) Hedwig on 2025-04-28 (20:48:19 UT)

CTU: Cross-track uncertainty (zero means: use the nominal prediction value, see event details below). Offsets and CTU all in mas.


Event Details
 Occultation UUID [and db] : 6b5a0c50-85d0-11ef-78cd-8104dbab5a4b [asteroids]

 Occultation Date + Time   : 2025-04-28 at 20:48:19 UT +/- 0.01 min  [1]
 Object Designation        : (476) Hedwig
 Star Designation          : GDR3 3501526415106390400
 Star Coordinates (ICRF)   : RA = 12 34 52.4527, DE = -22 18 01.787  [2]
 Star Magnitudes           : G = 13.29 mag, RP = 12.52 mag, BP = 13.94 mag
 Object Magnitude          : V = 12.55 mag
 Estimated Magnitude Drop  : 0.4 mag
 Estimated Max. Duration   : 11.8 sec
 Object Mean Diameter      : 116.8 km  (src: astorb)
 Orbital Class             : MBA
 Speed of the shadow       : 9.9 km/s
 Elongation to Moon & Sun  : 142° (sunlit = 2%), Sun = 153°
 Cross-track uncertainty   : 1.7 mas = 2 km = 0.02 path-width (1-sig)
 RUWE and duplicate source : 0.97 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL#133

 
 [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0


More Data and Informations
SiMDA | 3D Asteroid Catalogue | Johnston Archive | Star at CDS (Vizier) | JPL Small-Body Node | Minor Planet Center | Wikipedia
(If error 404: link not valid which means no data available)


Interactive map



Aladin Sky Atlas
Aladin Lite direct link (has Gaia overlay)