Collaborative Occultation
Resources and Archive
CORA
Occultations | Observations | Reports | Info + Credits | JOA | Admin | Login

Stellar Occultation by (2688) Halley on 2024-12-20 (22:22:02 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] : c6188480-ddb5-11f0-547e-b98ea13f49ca [observed]

 Occultation Date + Time   : 2024-12-20 at 22:22:02 UT +/- 0.0 min  [1]
 Object Designation        : (2688) Halley
 Star Designation          : GDR3 3425309673522243456
 Star Coordinates (ICRF)   : RA = 06 09 20.4785, DE = +23 07 18.995  [2]
 Star Magnitudes           : G = 12.96 mag, RP = 12.57 mag, BP = 13.2 mag
 Object Magnitude          : V = 16.89 mag
 Estimated Magnitude Drop  : 4.0 mag
 Estimated Max. Duration   : 1.4 sec
 Speed of the shadow       : 15.8 km/s
 Object Mean Diameter      : 21.5 km  (src: astorb) => apparent = 11 mas
 Apparent Motion           : 0.4950 arcs/min @ PA = 274 deg
 Horizontal Parallax       : 3.3250 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 65° (sunlit = 69%), Sun = 177°
 Cross-track uncertainty   : 0.3 mas = 0 km = 0.03 path-width (1-sig)
 RUWE and duplicate source : 1.29 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL71
 Note                      : FP:true

 
 [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

Download KMZ file

Aladin Sky Atlas
Loading sky atlas…
Aladin Lite direct link (has Gaia overlay)