SDSS J084934.71+411439.5
All names: GALEX J084934.6+411440, SDSS J084934.71+411439.5, Gaia DR2 912468688253796608, Gaia EDR3 912468688253796608, Gaia DR3 912468688253796608, [VV2006b] J084934.7+411439, WD 0846+414, SDSS J084934.72+411439.5
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 49 34.71 (0.4) | 08 49 34.72 | 08 49 34.71 (0.6) | 08 49 34.72 (0.4) | 08 49 34.72 | 08 49 34.42 | 08 49 34.72 | ||||||
| Declination | 41 14 39.34 (0.3) | 41 14 39.56 | 41 14 39.35 (0.3) | 41 14 39.61 (0.3) | 41 14 39.53 | 41 14 37.68 | 41 14 39.53 | ||||||
| Spectral type | DC+M: | DC+M: | DC+M | DC: | DC: | DCM: | DC | ||||||
| Effective temperature | [K] | 9355.0 | 9271.0 | 11949.0 (456) | 11444.0 (385) | ||||||||
| log(g) | [cgs] | 8.36 | 8.31 | 7.66 (0.5) | 7.49 (0.3) | ||||||||
| Mass | [M☉] | 0.829 | 0.778 | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 1.2840 | 1.1890 | ||||||||||
| log(H/He) | |||||||||||||
| log(C/He) | |||||||||||||
| log(Ca/He) | |||||||||||||
| log(Ca/H) | |||||||||||||
| Parallax | [mas] | 3.27 (0.5) | 3.81 (0.8) | 3.27 (0.5) | |||||||||
| Distance | [pc] | 306.07 (49) | 262.16 (56) | 306.07 (49) | |||||||||
| Composition | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | -7.270864548 (0.6) | -6.983212339 (1) | -7.271 (0.6) | 2.3 | ||||||||
| Proper motion (declination) | [mas/yr] | -16.69752722 (0.4) | -16.71875398 (0.7) | -16.698 (0.4) | -17.8 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | |||||||||||||
| V magnitude | 20.07 | ||||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | |||||||||||||
| H magnitude | |||||||||||||
| K magnitude | |||||||||||||
| u magnitude | 20.09 (0.04) | 20.09 (0.04) | 20.07 (0.05) | 20.06 | 20.07 (0.05) | ||||||||
| g magnitude | 20.00 (0.02) | 20.00 (0.02) | 20.01 (0.02) | 20.00 | 20.00 (0.02) | ||||||||
| r magnitude | 20.13 (0.02) | 20.13 (0.03) | 20.13 (0.03) | 20.12 | 20.13 (0.03) | ||||||||
| i magnitude | 20.34 (0.04) | 20.34 (0.04) | 20.33 (0.04) | 20.32 | 20.34 (0.04) | ||||||||
| z magnitude | 20.42 (0.2) | 20.43 (0.2) | 20.41 (0.2) | 20.39 | 20.41 (0.2) | ||||||||
| G magnitude | 20.05 (0.05) | 20.11 | 20.05 (0.005) | ||||||||||
| BP magnitude | 20.09 (0.05) | 20.02 | |||||||||||
| RP magnitude | 19.85 (0.08) | 20.02 | |||||||||||
| Pan g magnitude | 20.05 (0.02) | ||||||||||||
| Pan r magnitude | 20.15 (0.02) | ||||||||||||
| Pan i magnitude | 20.30 (0.02) | ||||||||||||
| Pan z magnitude | 20.34 (0.02) | ||||||||||||
| Pan y magnitude | 20.20 (0.05) | ||||||||||||
| E(B-V) | 0.020 | ||||||||||||
* Constant surface field
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