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Stellar Occultation by (1441) Bolyai on 2026-10-27 (18:05:34 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] : e50a1560-d9b4-11f1-43f3-330875fe096c [observed]

 Occultation Date + Time   : 2026-10-27 at 18:05:34 UT +/- 0.0 min  [1]
 Object Designation        : (1441) Bolyai
 Star Designation          : GDR3 4222368506021601664
 Star Coordinates (ICRF)   : RA = 20 16 00.0181, DE = -03 23 56.758  [2]
 Star Magnitudes           : G = 12.95 mag, RP = 12.17 mag, BP = 13.6 mag
 Object Magnitude          : V = 17.37 mag
 Estimated Magnitude Drop  : 4.4 mag
 Estimated Max. Duration   : 0.8 sec
 Speed of the shadow       : 18.5 km/s
 Object Mean Diameter      : 14.8 km  (src: astorb) => apparent = 11 mas
 Apparent Motion           : 0.8533 arcs/min @ PA = 90 deg
 Horizontal Parallax       : 4.9010 arcs
 Dynamical Class           : MBA
 Elongation to Moon & Sun  : 108° (sunlit = 97%), Sun = 91°
 Cross-track uncertainty   : 0.7 mas = 0 km = 0.06 path-width (1-sig)
 RUWE and duplicate source : 1.07 mas, dup.src = 0  (0:false, 1:true)

 Ephemeris Reference       : JPL56
 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
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