AAVSO

08900, 1979 UV, 1979UV, 1987 SX16, 1987SX16, 1989 EU2, 1989EU2, 1995 UD2, 1995UD2, J79U00V, J87S16X, J89E02U, J95U02D

All data for this body: [vot]

MPC data
Name (number) AAVSO (8900)
a 2.53670
e 0.14642
i / sin(i) 8.7305 / 0.15179
q 2.16527
Q 2.90813
ω 100.0089
Node 232.1850
m 146.4189
n 0.2440
Epoch 2460800.5
nobs 5653
nopp 26
Years observed 1979-2025
rms 0.54
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.537
ep 0.102
sin(ip) 0.165
G 0.150
H 13.630
Mass
D 5.73 0.302
pV 0.269 0.0328
Value
Rotational Period 3.830
Period quality 3
Spectral Class S
Spectral Class Score 4.650
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5370 0.1017 0.1651 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.00 1.170 1.170 Nugent 2016AJ....152...63N NEATM
5.46 1.480 1.480 Nugent 2016AJ....152...63N NEATM
5.79 0.320 0.320 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.230 0.0900 0.0900 Nugent 2016AJ....152...63N NEATM
0.270 0.1000 0.1000 Nugent 2016AJ....152...63N NEATM
0.276 0.0376 0.0376 Masiero 2011ApJ...741...68M NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2023-12-94 MPC-2023-12-94 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
13.63 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
3.837 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
3.839 3 Synodic Benishek 2020MPBu...47...75B Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S 0.775 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT