SDSS J092100.49+043216.5
All names: LAMOST J092100.49+043216.5, Gaia EDR3 579452660882131200, [HHD2009] SDSS J0921+0432, SDSS J092100.50+043216.5, GALEX J092100.5+043216, SDSS J092100.49+043216.5, WD 0918+047, Gaia DR2 579452660882131200, Gaia DR3 579452660882131200, WIRED J092100.49+043216.5, SDSS J092100.49+043216.6
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 21 00.49 (0.3) | 09 21 00.50 | 09 21 00.49 (0.5) | 09 21 00.49 | 09 21 00.50 (0.3) | 09 21 00.49 | 09 21 00.24 | 09 21 00.49 | ||||
| Declination | 04 32 16.74 (0.3) | 04 32 16.51 | 04 32 16.73 (0.3) | 04 32 16.51 | 04 32 16.48 (0.3) | 04 32 16.57 | 04 32 13.20 | 04 32 16.56 | ||||
| Spectral type | DA+M | DA+M | DA+dM | DA+M | DA d | DA+M | ||||||
| Effective temperature | [K] | 7288.0 | 22811.0 (1406) | 8841.0 (91) | 8767.0 (101) | |||||||
| log(g) | [cgs] | 7.07 | 7.91 (0.2) | 8.61 (0.1) | 8.41 (0.1) | |||||||
| Mass | [M☉] | 0.216 | 0.58 (0.1) | |||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 0.5813 | ||||||||||
| log(H/He) | ||||||||||||
| log(C/He) | ||||||||||||
| log(Ca/He) | ||||||||||||
| log(Ca/H) | ||||||||||||
| log(C/H) | ||||||||||||
| log(N/H) | ||||||||||||
| log(O/H) | ||||||||||||
| log(Na/H) | ||||||||||||
| log(Mg/H) | ||||||||||||
| log(Al/H) | ||||||||||||
| log(Si/H) | ||||||||||||
| log(P/H) | ||||||||||||
| log(S/H) | ||||||||||||
| log(Sc/H) | ||||||||||||
| log(Ti/H) | ||||||||||||
| log(Cr/H) | ||||||||||||
| log(Mn/H) | ||||||||||||
| log(Fe/H) | ||||||||||||
| log(Ni/H) | ||||||||||||
| Parallax | [mas] | 1.75 (0.4) | 3.59 (0.5) | 1.75 (0.4) | ||||||||
| Distance | [pc] | 571.32 (125) | 278.28 (40) | 1275.00 (134) | 571.33 (125) | |||||||
| Composition | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -5.353115451 (0.4) | -6.400223317 (0.8) | -5.353 (0.4) | -0.6 | |||||||
| Proper motion (declination) | [mas/yr] | 15.849635 (0.3) | 18.49969204 (0.7) | 15.85 (0.3) | 15.7 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | WDMS | WDMS | WDMS | |||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | ||||||||||||
| H magnitude | 16.99 (0.05) | |||||||||||
| K magnitude | 16.70 (0.05) | |||||||||||
| u magnitude | 19.46 (0.03) | 19.46 | 19.46 (0.03) | 19.46 (0.04) | 19.46 | 19.45 (0.04) | ||||||
| g magnitude | 19.36 (0.01) | 19.32 | 19.36 (0.01) | 19.32 (0.02) | 19.32 | 19.33 (0.02) | ||||||
| r magnitude | 19.46 (0.01) | 19.47 | 19.45 (0.01) | 19.47 (0.02) | 19.47 | 19.47 (0.02) | ||||||
| i magnitude | 19.13 (0.02) | 19.14 | 19.12 (0.01) | 19.14 (0.02) | 19.14 | 19.15 (0.02) | ||||||
| z magnitude | 18.81 (0.04) | 18.81 | 18.81 (0.04) | 18.81 (0.04) | 18.81 | 18.82 (0.04) | ||||||
| G magnitude | 19.26 (0.03) | 19.26 | 19.26 (0.005) | |||||||||
| BP magnitude | 19.45 (0.03) | 19.46 | ||||||||||
| RP magnitude | 18.75 (0.03) | 18.75 | ||||||||||
| Pan g magnitude | 19.36 (0.01) | |||||||||||
| Pan r magnitude | 19.49 (0.01) | |||||||||||
| Pan i magnitude | 19.16 (0.01) | |||||||||||
| Pan z magnitude | 18.83 (0.01) | |||||||||||
| Pan y magnitude | 18.68 (0.04) | |||||||||||
| E(B-V) | 0.030 | |||||||||||
* Constant surface field
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