All names: Gaia DR2 4720417758386878080, EC03089-6421, 2MASS J03095040-6410326, EC 03089-6421, GALEX J030950.3-641032, Gaia EDR3 4720417758386878080, Gaia DR3 4720417758386878080, UCAC4 130-002851, BPS CS 31064-0017, TIC 220573709
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 03 09 50.40 (0.03) | 03 09 50.45 | 03 09 50.39 (0.03) | ||
| Declination | -64 10 32.54 (0.03) | -64 10 33.71 | -64 10 32.65 (0.03) | ||
| Spectral type | sdO | sdO | |||
| Effective temperature | [K] | ||||
| log(g) | [cgs] | ||||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 1.21 (0.03) | 1.20 (0.04) | 1.21 (0.03) | |
| Distance | [pc] | 828.09 (23) | 836.54 (30) | 828.09 (23) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 4.495 (0.04) | 4.458 (0.09) | 4.495 (0.04) | |
| Proper motion (declination) | [mas/yr] | 7.287 (0.04) | 7.291 (0.08) | 7.287 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.41 (0.01) | ||||
| V magnitude | 14.69 (0.01) | ||||
| R magnitude | 15.18 (0.1) | ||||
| I magnitude | |||||
| J magnitude | 15.44 (0.06) | 15.44 (0.06) | |||
| H magnitude | 15.73 (0.1) | 15.73 (0.1) | |||
| K magnitude | 15.55 (0.2) | 15.55 (0.2) | |||
| u magnitude | |||||
| g magnitude | 14.43 (0.04) | ||||
| r magnitude | 14.91 (0.01) | ||||
| i magnitude | 15.34 (0.1) | ||||
| z magnitude | |||||
| G magnitude | 14.67 (0.003) | 14.69 (0.0009) | 14.67 (0.003) | ||
| BP magnitude | 14.50 (0.003) | 14.43 (0.008) | |||
| RP magnitude | 15.01 (0.005) | 15.01 (0.004) | |||
| Pan g magnitude | |||||
| Pan r magnitude | |||||
| Pan i magnitude | |||||
| Pan z magnitude | |||||
| Pan y magnitude | |||||
| E(B-V) | 0.031 | ||||
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.