All names: TIC 74093572, 2MASS J16163126-0038532, LAMOST J161631.28-003853.2, GALEX J161631.2-003853, SDSS J161631.29-003853.3, SDSSJ161631.28-003853.1, Gaia DR2 4407283954965874816, WIRED J161631.28-003853.2, Gaia EDR3 4407283959264641664, Gaia DR3 4407283959264641664, SDSS J161631.28-003853.1, SDSS J161631.28-003853.2
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | Gaia DR2 | Stilism | Harris et al. 2003 | Simbad | Eisenstein et al. 2006 | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 16 31.29 (0.06) | 16 16 31.29 | 16 16 31.29 | 16 16 31.29 (0.1) | 16 16 31.29 (0.06) | 16 16 31.29 | 16 16 31.29 | ||||
| Declination | -00 38 53.29 (0.05) | -00 38 53.18 | -00 38 53.20 | -00 38 53.28 (0.07) | -00 38 53.23 (0.05) | -00 38 53.19 | -00 38 53.25 | ||||
| Spectral type | sdOB | sdO: | sdO | SDO | DA:B: | ||||||
| Effective temperature | [K] | 37581.0 (224) | 34615.0 (262) | 33114.0 (261) | |||||||
| log(g) | [cgs] | 5.87 (0.05) | 5.56 (0.04) | 5.52 (0.05) | |||||||
| Mass | [M☉] | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 0.28 (0.07) | 0.31 (0.1) | 0.31 (0.1) | 0.28 (0.07) | ||||||
| Distance | [pc] | 3555.52 (917) | 3213.37 (1465) | 3213.76 (1466) | 3554.92 (916) | ||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -1.340676479 (0.07) | -1.461 (0.2) | -1.460762643 (0.2) | -1.341 (0.07) | ||||||
| Proper motion (declination) | [mas/yr] | -3.198172144 (0.05) | -3.021 (0.1) | -3.020840116 (0.1) | -3.198 (0.05) | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 16.38 (0.1) | 16.38 (0.1) | |||||||||
| H magnitude | 16.10 (0.2) | 16.10 (0.2) | |||||||||
| K magnitude | 15.38 (0.2) | 15.38 (0.08) | |||||||||
| u magnitude | 16.55 (0.006) | 16.55 (0.006) | 16.58 | 16.55 (0.006) | 16.56 (0.02) | 16.58 (0.02) | |||||
| g magnitude | 16.69 (0.004) | 16.69 (0.004) | 16.72 | 16.69 (0.004) | 16.72 (0.01) | 16.72 (0.01) | |||||
| r magnitude | 16.94 (0.005) | 16.94 (0.005) | 16.95 | 16.94 (0.005) | 16.94 (0.01) | 16.95 (0.01) | |||||
| i magnitude | 17.06 (0.005) | 17.06 (0.005) | 17.05 | 17.06 (0.005) | 17.05 (0.01) | 17.06 (0.01) | |||||
| z magnitude | 17.18 (0.01) | 17.18 (0.01) | 17.16 | 17.18 (0.01) | 17.15 (0.02) | 17.18 (0.02) | |||||
| G magnitude | 16.80 (0.004) | 16.82 (0.001) | 16.82 | 16.80 (0.003) | |||||||
| BP magnitude | 16.79 (0.004) | 16.73 (0.006) | 16.73 | ||||||||
| RP magnitude | 16.74 (0.007) | 16.73 (0.01) | 16.73 | ||||||||
| Pan g magnitude | 16.75 (0.003) | 16.75 (0.003) | |||||||||
| Pan r magnitude | 16.94 (0.003) | 16.94 (0.003) | |||||||||
| Pan i magnitude | 17.08 (0.003) | 17.08 (0.003) | |||||||||
| Pan z magnitude | 17.18 (0.009) | 17.18 (0.009) | |||||||||
| Pan y magnitude | 17.21 (0.009) | 17.21 (0.009) | |||||||||
| E(B-V) | 0.110 | ||||||||||
* 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.