SDSS J154459.83+464835.4
All names: USNO-B1.0 1368-00281781, SDSS J154459.83+464835.3, Gaia EDR3 1398189185457847680, SDSS J154459.83+464835.4, SDSS J154459.80+464835.39, Gaia DR3 1398189185457847680, SDSS J154459.80+464835.3, Gaia DR2 1398189185457847680
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Kepler et al. 2015 | Vincent et al. 2024 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 44 59.78 (0.2) | 15 44 59.83 | 15 44 59.78 (0.2) | 15 44 59.78 | 15 44 59.84 (0.2) | |||||||
| Declination | 46 48 35.25 (0.2) | 46 48 35.39 | 46 48 35.25 (0.3) | 46 48 35.25 | 46 48 35.33 (0.2) | |||||||
| Spectral type | CV_low_acc | CV_low_acc | CV_low_acc | DA: | DA | CV | ||||||
| Effective temperature | [K] | 9475.0 | 9613.0 | 10182.0 (103) | 9645.0 (402) | |||||||
| log(g) | [cgs] | 7.61 | 7.57 | 9.48 (0.3) | 7.59 (0.1) | |||||||
| Mass | [M☉] | 0.399 | 0.362 | 0.389 (0.07) | ||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 0.4468 | 0.4257 | |||||||||
| log(H/He) | ||||||||||||
| log(C/He) | ||||||||||||
| log(Ca/He) | ||||||||||||
| log(Ca/H) | ||||||||||||
| Parallax | [mas] | 3.21 (0.2) | 3.32 (0.2) | 3.21 | 3.21 (0.2) | |||||||
| Distance | [pc] | 311.90 (18) | 301.22 (22) | 311.90 | 311.90 (18) | |||||||
| Composition | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -35.43886549 (0.2) | -35.5475129 (0.4) | -35.439 (0.2) | ||||||||
| Proper motion (declination) | [mas/yr] | -4.941376792 (0.3) | -4.348293609 (0.5) | -4.941 (0.3) | ||||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | 19.40 | |||||||||||
| V magnitude | ||||||||||||
| R magnitude | 19.40 | |||||||||||
| I magnitude | ||||||||||||
| J magnitude | ||||||||||||
| H magnitude | ||||||||||||
| K magnitude | ||||||||||||
| u magnitude | 19.44 (0.03) | 19.43 (0.03) | 19.44 (0.03) | |||||||||
| g magnitude | 19.17 (0.01) | 19.18 (0.02) | 19.17 (0.01) | |||||||||
| r magnitude | 19.23 (0.01) | 19.23 (0.02) | 19.23 (0.01) | |||||||||
| i magnitude | 19.44 (0.02) | 19.43 (0.03) | 19.44 (0.02) | |||||||||
| z magnitude | 19.50 (0.07) | 19.51 (0.07) | 19.48 (0.07) | |||||||||
| G magnitude | 19.20 (0.03) | 19.22 | 19.20 | 19.20 (0.005) | ||||||||
| BP magnitude | 19.34 (0.03) | 19.25 | ||||||||||
| RP magnitude | 19.10 (0.04) | 19.08 | ||||||||||
| Pan g magnitude | 19.21 (0.009) | |||||||||||
| Pan r magnitude | 19.28 (0.01) | |||||||||||
| Pan i magnitude | 19.43 (0.01) | |||||||||||
| Pan z magnitude | 19.55 (0.03) | |||||||||||
| Pan y magnitude | 19.49 (0.08) | |||||||||||
| E(B-V) | 0.018 | |||||||||||
* Constant surface field
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