IsolatedStarStellarMotions
Position, proper motion, and parallax for isolated stars, fit using associated source measurements, with positions for associated reference objects if available.
Columns
| name | datatype | description | unit | nullable | ivoa:ucd | tap:principal |
|---|---|---|---|---|---|---|
| dec | double | Position in declination at the reference epoch. | deg | true | pos.eq.dec;meta.main | 1 |
| decErr | double | Error in declination at the reference epoch. | deg | true | stat.error;pos.eq.dec | 1 |
| decPM | double | Proper motion in declination. | mas/yr | true | pos.pm;pos.eq.dec | 1 |
| decPMErr | double | Error in proper motion in declination. | mas/yr | true | stat.error;pos.pm;pos.eq.dec | 1 |
| decPM_parallax_Cov | double | Covariance between proper motion in declination and parallax. | mas**2/yr | true | stat.covariance;pos.pm;pos.eq.dec;pos.parallax | 0 |
| dec_decPM_Cov | double | Covariance between declination and proper motion in declination. | deg*mas/yr | true | stat.covariance;pos.eq.dec;pos.pm;pos.eq.dec | 0 |
| dec_parallax_Cov | double | Covariance between declination and parallax. | deg*mas | true | stat.covariance;pos.eq.dec;pos.parallax | 0 |
| dec_raPM_Cov | double | Covariance between declination and proper motion in right ascension. | deg*mas/yr | true | stat.covariance;pos.eq.dec;pos.pm;pos.eq.ra | 0 |
| epoch | double | Epoch in MJD to which the position corresponds. | d | true | time.epoch | 1 |
| isolated_star_id | long | Unique id of isolated star | true | meta.id;meta.main | 1 | |
| parallax | double | Parallax | mas | true | pos.parallax | 1 |
| parallaxErr | double | Error in parallax. | mas | true | stat.error;pos.parallax | 1 |
| ra | double | Position in right ascension at the reference epoch. | deg | true | pos.eq.ra;meta.main | 1 |
| raErr | double | Angular error in right ascension (∂RA*cos(Dec)) at the reference epoch. | deg | true | stat.error;pos.eq.ra | 1 |
| raPM | double | Proper motion in right ascension. | mas/yr | true | pos.pm;pos.eq.ra | 1 |
| raPMErr | double | Error in proper motion in right ascension. | mas/yr | true | stat.error;pos.pm;pos.eq.ra | 1 |
| raPM_decPM_Cov | double | Covariance between proper motion in right ascension and proper motion in declination. | mas**2/yr**2 | true | stat.covariance;pos.pm;pos.eq.ra;pos.pm;pos.eq.dec | 0 |
| raPM_parallax_Cov | double | Covariance between proper motion in right ascension and parallax. | mas**2/yr | true | stat.covariance;pos.pm;pos.eq.ra;pos.parallax | 0 |
| ra_decPM_Cov | double | Covariance between right ascension and proper motion in declination. | deg*mas/yr | true | stat.covariance;pos.eq.ra;pos.pm;pos.eq.dec | 0 |
| ra_dec_Cov | double | Covariance between right ascension (RA*cos(Dec)) and declination. | deg**2 | true | stat.covariance;pos.eq.ra;pos.eq.dec | 0 |
| ra_parallax_Cov | double | Covariance between right ascension and parallax. | deg*mas | true | stat.covariance;pos.eq.ra;pos.parallax | 0 |
| ra_raPM_Cov | double | Covariance between right ascension and proper motion in right ascension. | deg*mas/yr | true | stat.covariance;pos.eq.ra;pos.pm;pos.eq.ra | 0 |
| ref_dec | double | Position of the reference object in declination at the reference epoch. | deg | true | pos.eq.dec | 0 |
| ref_decPM | double | Proper motion of the reference object in declination. | mas/yr | true | pos.pm;pos.eq.dec | 0 |
| ref_parallax | double | Parallax of the reference object | mas | true | pos.parallax | 0 |
| ref_ra | double | Position of the reference object in right ascension at the reference epoch. | deg | true | pos.eq.ra | 0 |
| ref_raPM | double | Proper motion of the reference object in right ascension. | mas/yr | true | pos.pm;pos.eq.ra | 0 |
| referenceId | long | ID of the reference object if available, from Gaia DR3. | true | meta.id.assoc | 1 |