All names: UCAC2 37531326, GALEX J075234.2+161604, Gaia EDR3 666988874675710464, TIC 17773383, Gaia DR3 666988874675710464, UCAC4 532-043404, GALEX J075234.2+161603, WISE J075234.26+161605.1, GALEXJ07525+1616, WISEA J075234.27+161605.2, LAMOST J075234.29+161605.2, Gaia DR2 666988874675710464, 2MASS J07523429+1616052, SDSS J075234.29+161605.3
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 07 52 34.30 (0.04) | 07 52 34.32 | 07 52 34.30 (0.04) | ||
| Declination | 16 16 05.29 (0.03) | 16 16 05.20 | 16 16 05.32 (0.03) | ||
| Spectral type | He-sdO | sdOHe | |||
| Effective temperature | [K] | 49280.0 (5320) | |||
| log(g) | [cgs] | 6.08 (0.4) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.69 (0.05) | 0.69 (0.07) | 0.69 (0.05) | |
| Distance | [pc] | 1452.22 (108) | 1459.43 (146) | 1452.22 (108) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -1.697 (0.05) | -1.629 (0.1) | -1.697 (0.05) | |
| Proper motion (declination) | [mas/yr] | -2.241 (0.03) | -2.353 (0.06) | -2.241 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.29 (0.05) | ||||
| V magnitude | 14.49 (0.03) | ||||
| R magnitude | 14.88 (0.08) | ||||
| I magnitude | |||||
| J magnitude | 15.24 (0.05) | 15.24 (0.05) | |||
| H magnitude | 15.38 (0.1) | 15.38 (0.1) | |||
| K magnitude | 15.22 (0.2) | 15.22 (0.2) | |||
| u magnitude | 13.76 (0.003) | 13.75 (0.01) | |||
| g magnitude | 14.18 (0.003) | 14.24 (0.01) | |||
| r magnitude | 14.71 (0.004) | 14.71 (0.01) | |||
| i magnitude | 15.07 (0.004) | 15.08 (0.01) | |||
| z magnitude | 15.42 (0.005) | 15.42 (0.01) | |||
| G magnitude | 14.45 (0.003) | 14.46 (0.0005) | 14.45 (0.003) | ||
| BP magnitude | 14.29 (0.003) | 14.18 (0.006) | |||
| RP magnitude | 14.76 (0.004) | 14.75 (0.002) | |||
| Pan g magnitude | 14.31 (0.006) | ||||
| Pan r magnitude | 14.74 (0.003) | ||||
| Pan i magnitude | 15.09 (0.001) | ||||
| Pan z magnitude | 15.38 (0.002) | ||||
| Pan y magnitude | 15.57 (0.003) | ||||
| E(B-V) | 0.030 | ||||
* 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.