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

Stellar Occultation by (5956) d'Alembert on 2026-09-06 (23:06:36 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] : ad1932d0-d9af-11f1-43f3-5d00fff67f3b [observed]

 Occultation Date + Time   : 2026-09-06 at 23:06:36 UT +/- 0.02 min  [1]
 Object Designation        : (5956) d'Alembert
 Star Designation          : GDR3 2676874857274690304
 Star Coordinates (ICRF)   : RA = 22 09 58.4594, DE = -01 46 36.837  [2]
 Star Magnitudes           : G = 15.19 mag, RP = 14.17 mag, BP = 15.94 mag
 Object Magnitude          : V = 15.21 mag
 Estimated Magnitude Drop  : 0.8 mag
 Estimated Max. Duration   : 1.1 sec
 Speed of the shadow       : 7.0 km/s
 Object Mean Diameter      : 7.8 km  (src: astorb) => apparent = 11 mas
 Apparent Motion           : 0.5767 arcs/min @ PA = 219 deg
 Horizontal Parallax       : 8.8010 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 134° (sunlit = 21%), Sun = 166°
 Cross-track uncertainty   : 2.3 mas = 1 km = 0.21 path-width (1-sig)
 RUWE and duplicate source : 4.58 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL64
 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)