| B/gcvs/gcvs_cat | General Catalogue of Variable Stars (Samus+, 2007-2017) GCVS catalog (GCVS 5.1, version Oct, 2020) (58200 rows) | recno=18499 |
| Column | Value | Explain (UCD) | |
| _RAJ2000 | 20 32 25.8300 | "h:m:s" | Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra) |
| _DEJ2000 | +40 57 28.000 | "d:m:s" | Declination (FK5, Equinox=J2000.0) at Epoch=J2000. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec) |
| _RAB1950 | 20 30 37.6813 | "h:m:s" | Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra) |
| _DEB1950 | +40 47 12.649 | "d:m:s" | Declination (FK4, Equinox=B1950.0) at Epoch=J1950. (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec) |
| _Glon | 079.8455955 | deg | Galactic longitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon) |
| _Glat | +0.6999463 | deg | Galactic latitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat) |
| 18499recno | 18499 | Record number assigned by the VizieR team. Should Not be used for identification. (meta.record) | |
| VarNum | 311521 | Numeric designation, made from constellation and star names (codes in file " constel.txt") (meta.id) | |
| m_VarNum | Component identification (Note 1) (meta.code.multip) | ||
| GCVS | V1521 Cyg | (i) Variable star designation. (Note G1) (meta.id;meta.main) | |
| n_GCVS | * | [*] indicates a remark in "gcvs_rem.dat" file , {x} indicates the existence of cross-identifications (meta.note) | |
| RAJ2000 | 20 32 25.83 | "h:m:s" | (i) Hours RA, equinox J2000.0 (Note G1) (pos.eq.ra;meta.main) |
| DEJ2000 | +40 57 28.0 | "d:m:s" | (i) Degrees Dec, equinox J2000.0 (Note G1) (pos.eq.dec;meta.main) |
| u_DEJ2000 | [:] position accuracy flag (Note G2) (meta.code.error;pos.eq.dec) | ||
| VarType | X | Type of variability (see file "vartype.txt") (meta.code;src.var) | |
| l_magMax | [<>(] Limit or amplitude symbol on magMax (Note G3) (meta.code.error) | ||
| magMax | 11.400 | mag | Magnitude at maximum brightness (phot.mag) |
| u_magMax | Uncertainty flag (:) on magMax (meta.code.error) | ||
| l_Min1 | ( | [< (] Limit or amplitude symbol on Min1 (Note G3) (meta.code.error) | |
| Min1 | 1.530 | mag | Minimum I magnitude or amplitude (phot.mag) |
| u_Min1 | Uncertainty flag (:) on magMinI (meta.code.error) | ||
| n_Min1 | Alternative photometric system for Min1 (Note G4) (meta.note) | ||
| l_Min2 | [< (] Limit or amplitude symbol on Min2 (Note G3) (meta.code.error) | ||
| Min2 | mag | Minimum II magnitude or amplitude (phot.mag) | |
| u_Min2 | Uncertainty flag (:) on magMinII (meta.code.error) | ||
| n_Min2 | Alternative photometric system for Min2 (Note G4) (meta.note) | ||
| flt | K | The photometric system for magnitudes (Note G4) (meta.code;instr.filter) | |
| Epoch | d | (i) Epoch for maximum light, Julian days (Note G5) (time.epoch) | |
| u_Epoch | [:±] Uncertainty flag on Epoch (Note 6) (meta.code.error;time.epoch) | ||
| Year | Year of outburst for nova or supernova (time.epoch) | ||
| u_Year | [:] Quality flag on Year of outburst (meta.code.error) | ||
| l_Period | [<>(] Code for upper or lower limits (Note 7) (meta.code.error;time.period) | ||
| Period | d | Period of the variable star (time.period) | |
| u_Period | [:] Uncertainty flag (:) on Period (meta.code.error;time.period) | ||
| n_Period | [*/N) 2] Flag on Period (Note 8) (meta.note) | ||
| M-m/D | % | Rising time (M-m) or duration of eclipse (D) (Note G6) (time.interval) | |
| u_M-m/D | Uncertainty flag (:) on M-m/D (meta.code.error) | ||
| n_M-m/D | [*: ] Note for eclipsing variable (Note G6) (meta.note) | ||
| SpType | Spectral type (src.spType) | ||
| Ref1 | 09186 | Reference to a study of the star (Note G7) (meta.bib) | |
| Ref2 | 09058 | Reference to a chart or photograph (Note G7) (meta.bib) | |
| Exists | Cases of non-existence of the variable etc. (Note 12) (meta.note) | ||
| pmRA | arcsec/yr | Proper motion RA (pos.pm;pos.eq.ra) | |
| pmDE | arcsec/yr | Proper motion DE (pos.pm;pos.eq.dec) | |
| Ep-coor | 1975.400 | yr | Epoch of the coordinates (Note 13) (time.epoch) |
| u_Ident | [?] Uncertainty flag (?) on identification (Note 14) (meta.code.error) | ||
| Ident | Lit. | The source of astrometric data (Note 15) (meta.code) | |
| VarTypeII | The new type of variability (Note 16) (meta.note;src.var) | ||
| VarName | V1521 Cyg | Variable star designation (Note 17) (meta.id) | |
| AFOEV | AFOEV | Check the existence of a light curve at AFOEV (meta.ref.url) | |
| Simbad | V* V1521 Cyg | ask the Simbad data-base about this object (meta.ref.url) | |
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