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I/337/tgasptyc

Gaia DR1 (Gaia Collaboration, 2016)

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TGAS supplement with BT and VT magnitudes (original column names in green) (2057050 rows)

source_id=4658717353431347712

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*Column*	*Value*		*Explain (UCD)*
_RAJ2000	05 18 32.545286663	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEJ2000	-68 13 32.77921552	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_RAB1950	05 18 42.706569203	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.ra) (POS_EQ_RA)
_DEB1950	-68 16 35.54179155	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (pos.eq.dec) (POS_EQ_DEC)
_Glon	278.767402803557	deg	Galactic longitude at Epoch=J2015, proper motions taken into account (pos.galactic.lon) (POS_GAL_LON)
_Glat	-33.616275362227	deg	Galactic latitude at Epoch=J2015, proper motions taken into account (pos.galactic.lat) (POS_GAL_LAT)
1253901recno	1253901		Record number assigned by the VizieR team. Should Not be used for identification. (meta.record) (RECORD)

hip	24763		Hipparcos identifier (hip) (meta.id.cross) (ID_ALTERNATIVE)
tycho2_id			Tycho 2 identifier (tycho2_id) (meta.id.cross) (ID_ALTERNATIVE)
solution_id	1635378410781933568		Solution ID (solution_id) (Note G1) (meta.id;meta.version) (ID_NUMBER)
source_id	4658717353431347712		⁽ⁱ⁾ Source ID (source_id) (Note G2) (meta.id;meta.main) (ID_MAIN)
random_index	440097		Random index used to select subsets (random_index) (Note G3) (meta.code) (CODE_MISC)
ref_epoch	2015.0	yr	[2015.0] Reference epoch in Julian years (ref_epoch) (Note G4) (meta.ref;time.epoch) (TIME_EPOCH)
ra	079.6367376673	deg	⁽ⁱ⁾ Right ascension (ICRS) at epoch 2015.0 (ra) (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
ra_error	0.188	mas	⁽ⁱ⁾ Standard error of right ascension (ra_error) (stat.error;pos.eq.ra) (ERROR)
dec	-68.2255510540	deg	⁽ⁱ⁾ Declination (ICRS) at epoch 2015.0 (dec) (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
dec_error	0.203	mas	⁽ⁱ⁾ Standard error of declination (dec_error) (stat.error;pos.eq.dec) (ERROR)
parallax	8.04	mas	⁽ⁱ⁾ Absolute barycentric stellar parallax of the source at the reference epoch Epoch (parallax) (pos.parallax) (POS_PARLX_TRIG)
parallax_error	0.22	mas	⁽ⁱ⁾ Standard error of parallax (parallax_error) (stat.error;pos.parallax) (ERROR)
pmRA	100.807	mas/yr	⁽ⁱ⁾ Proper motion in right ascension direction (pmRA) (Note G5) (pos.pm;pos.eq.ra) (POS_EQ_PMRA)
pmra_error	0.268	mas/yr	⁽ⁱ⁾ Standard error of proper motion in right ascension direction (pmra_error) (stat.error;pos.pm;pos.eq.ra) (ERROR)
pmdec	53.029	mas/yr	⁽ⁱ⁾ Proper motion in declination direction (pmdec) (Note G6) (pos.pm;pos.eq.dec) (POS_EQ_PMDEC)
pmdec_error	0.284	mas/yr	⁽ⁱ⁾ Standard error of proper motion in declination direction (pmdec_error) (stat.error;pos.pm;pos.eq.dec) (ERROR)
ra_dec_corr	0.270		Correlation between right ascension and declination (ra_dec_corr) (stat.correlation) (STAT_CORRELATION)
ra_parallax_corr	0.493		Correlation between right ascension and parallax (ra_parallax_corr) (stat.correlation) (STAT_CORRELATION)
ra_pmra_corr	-0.009		Correlation between right ascension and proper motion in right ascension (ra_pmra_corr) (stat.correlation) (STAT_CORRELATION)
ra_pmdec_corr	0.002		Correlation between right ascension and proper motion in declination (ra_pmdec_corr) (stat.correlation) (STAT_CORRELATION)
dec_parallax_corr	0.504		Correlation between declination and parallax (dec_parallax_corr) (stat.correlation) (STAT_CORRELATION)
dec_pmra_corr	0.201		Correlation between declination and proper motion in right ascension (dec_pmra_corr) (stat.correlation) (STAT_CORRELATION)
dec_pmdec_corr	-0.163		Correlation between declination and proper motion in declination (dec_pmdec_corr) (stat.correlation) (STAT_CORRELATION)
parallax_pmra_corr	0.257		Correlation between parallax and proper motion in right ascension (parallax_pmra_corr) (stat.correlation) (STAT_CORRELATION)
parallax_pmdec_corr	-0.171		Correlation between parallax and proper motion in declination (parallax_pmdec_corr) (stat.correlation) (STAT_CORRELATION)
pmra_pmdec_corr	-0.223		Correlation between proper motion in right ascension and proper motion in declination (pmra_pmdec_corr) (stat.correlation) (STAT_CORRELATION)
astrometric_n_obs_al	82		Total number of observations AL (astrometric_n_obs_al) (Note G7) (meta.number) (NUMBER)
astrometric_n_obs_ac	82		Total number of observations AC (astrometric_n_obs_ac) (Note G8) (meta.number) (NUMBER)
astrometric_n_good_obs_al	81		Number of good observations AL (astrometric_n_good_obs_al) (Note G9) (meta.number) (NUMBER)
astrometric_n_good_obs_ac	82		Number of good observations AC (astrometric_n_good_obs_ac) (Note G9) (meta.number) (NUMBER)
astrometric_n_bad_obs_al	1		Number of bad observations AL (astrometric_n_bad_obs_al) (Note G10) (meta.number) (NUMBER)
astrometric_n_bad_obs_ac	0		Number of bad observations AC (astrometric_n_bad_obs_ac) (Note G10) (meta.number) (NUMBER)
astrometric_delta_q	1.82		Hipparcos/Gaia data discrepancy (Hipparcos subset of TGAS only) (astrometric_delta_q) (Note G11) (stat.value) (STAT_PARAM)
astrometric_excess_noise	0.31	mas	Excess noise of the source (astrometric_excess_noise) (Note G12) (stat.value) (STAT_PARAM)
astrometric_excess_noise_sig	1.3e+02		Significance of excess noise (astrometric_excess_noise_sig) (Note G13) (stat.value) (STAT_PARAM)
astrometric_primary_flag	1		[1] Primary or secondary (astrometric_primary_flag) (Note G14) (meta.code) (CODE_MISC)
astrometric_relegation_factor	3.14		Relegation factor (astrometric_relegation_factor) (arith.factor) (STAT_PARAM)
astrometric_weight_al	9.308	mas-2	Mean astrometric weight of the source in the AL direction (astrometric_weight_al) (stat.weight;stat.mean) (WEIGHT)
astrometric_weight_ac	2.50e-05	mas-2	Mean astrometric weight of the source in the AC direction (astrometric_weight_ac) (stat.weight;stat.mean) (WEIGHT)
astrometric_priors_used	3		[3/5] Type of prior used in in the astrometric solution (astrometric_priors_used) (Note G15) (meta.code) (CODE_MISC)
matched_observations	15		Amount of observations matched to this source (matched_observations) (Note G16) (meta.number) (NUMBER)
duplicated_source	0		[0/1] Source with duplicate sources (duplicated_source) (Note G17) (meta.code) (CODE_MISC)
scan_direction_strength_k1	0.267		[0/1] Degree of concentration of scan directions across the source (scan_direction_strength_k1) (Note G18) (meta.code) (CODE_MISC)
scan_direction_strength_k2	0.082		[0/1] Degree of concentration of scan directions across the source (scan_direction_strength_k2) (Note G18) (meta.code) (CODE_MISC)
scan_direction_strength_k3	0.353		[0/1] Degree of concentration of scan directions across the source (scan_direction_strength_k3) (Note G18) (meta.code) (CODE_MISC)
scan_direction_strength_k4	0.118		[0/1] Degree of concentration of scan directions across the source (scan_direction_strength_k4) (Note G18) (meta.code) (CODE_MISC)
scan_direction_mean_k1	-37.44534300	deg	Mean position angle of scan directions across the source (scan_direction_mean_k1) (Note G19) (meta.code) (CODE_MISC)
scan_direction_mean_k2	-69.11400600	deg	Mean position angle of scan directions across the source (scan_direction_mean_k2) (Note G19) (meta.code) (CODE_MISC)
scan_direction_mean_k3	-18.32159600	deg	Mean position angle of scan directions across the source (scan_direction_mean_k3) (Note G19) (meta.code) (CODE_MISC)
scan_direction_mean_k4	12.65454700	deg	Mean position angle of scan directions across the source (scan_direction_mean_k4) (Note G19) (meta.code) (CODE_MISC)
phot_g_n_obs	111		Number of observations contributing to G photometry (phot_g_n_obs) (meta.number) (NUMBER)
phot_g_mean_flux	739522.54834	e-/s	⁽ⁱ⁾ G-band mean flux (phot_g_mean_flux) (phot.flux;stat.mean;em.opt) (PHOT_FLUX_R)
phot_g_mean_flux_error	14873.58543	e-/s	⁽ⁱ⁾ Error on G-band mean flux (phot_g_mean_flux_error) (stat.error) (ERROR)
phot_g_mean_mag	10.852	mag	⁽ⁱ⁾ G-band mean magnitude (phot_g_mean_mag) (Note G20) (phot.mag;stat.mean;em.opt) (PHOT_MAG_R)
phot_variable_flag	NOT_AVAILABLE		Photometric variability flag (phot_variable_flag) (Note G21) (meta.code;src.var) (CODE_VARIAB)
l	278.7674049270	deg	⁽ⁱ⁾ Galactic longitude at epoch 2015.0 (l) (pos.galactic.lon) (POS_GAL_LON)
b	-33.6162738556	deg	⁽ⁱ⁾ Galactic latitude at epoch 2015.0 (b) (pos.galactic.lat) (POS_GAL_LAT)
ecl_lon	332.5898072694	deg	Ecliptic longitude at epoch 2015.0 (ecl_lon) (pos.ecliptic.lon) (POS_EC_LON)
ecl_lat	-85.6890572530	deg	Ecliptic latitude at epoch 2015.0 (ecl_lat) (pos.ecliptic.lat) (POS_EC_LAT)
TYC	9162-347-1		TYC2 or TYC1 designation (meta.id.cross) (ID_ALTERNATIVE)
BTmag	12.005	mag	Tycho-2 or HIP BT magnitude (phot.mag;em.opt.B) (PHOT_TYCHO_B)
e_BTmag	0.111	mag	rms uncertainty on BTmag (stat.error;phot.mag;em.opt.B) (ERROR)
VTmag	11.234	mag	Tycho-2 or HIP VT magnitude (phot.mag;em.opt.V) (PHOT_TYCHO_V)
e_VTmag	0.083	mag	rms uncertainty on VTmag (stat.error;phot.mag;em.opt.V) (ERROR)

_RA.icrs	079.6356053611	deg	⁽ⁱ⁾ Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra) (POS_EQ_RA_OTHER)
_DE.icrs	-68.2257720043	deg	⁽ⁱ⁾ Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec) (POS_EQ_DEC_OTHER)

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