... The Tycho-2 positions and magnitudes are based on precisely the same observations as the original Tycho Catalogue (Tycho-1) collected by the star mapper of the ESA Hipparcos satellite, but Tycho-2 is much bigger and slightly more precise owing to a more ...
... Apparent Encounters . of the Tycho-2 Catalogue stars and the main natural planetary satellites . by S.Vashkovyak . Topics . ... with the Tycho-2 Catalogue stars. In the beginning of the ephemerides the star conditional catalogue is given. ...
... We used common stars of TYCHO program and 4M catalog in the fields 2 x 2 degrees (3 x 3 in some cases) centered in open clusters and calculated median differences of their proper motions, found in TYCHO and 4M catalogs. ...
... frame: astrometric centre of frame: geocentre epoch of equinox: J2000 time scale: UTC reduction: Catalogue Tycho-2 coordinates: absolute diff. refraction: no information receptor: CCD telescope: no information observers: no information data included in ...
... frame: astrometric centre of frame: geocentre epoch of equinox: J2000 time scale: UTC reduction: Catalogue Tycho-2 coordinates: absolute diff. refraction: no information receptor: CCD telescope: no information observers: no information data included in ...
... Format Units Label Explanations -------------------------------------------------------------------- 1- 2 I2 ---- Conditional number 8-11 I4 ---- ntch1 Three number from Tycho-2 15-18 I4 ---- ntch2 22-22 I ---- ntch3 26-40 alpha Right ascencion (hour,min ...
... Tyc2 - The Tycho Catalogue (Hog et al. 2000). ... where the star is absent in the second Tycho catalogue but is present in the first ... The Tycho-2 Catalogue, CD-ROM (Copenhagen, 2000). 2. ...
... Tyc2 - The Tycho Catalogue (Hog et al. 2000). ... where the star is absent in the second Tycho catalogue but is present in the first ... The Tycho-2 Catalogue, CD-ROM (Copenhagen, 2000). 2. ...
... Gunn; "T" stands for broad-band Tycho magnitudes formed from B and V measurements ... Tyc2 - The Tycho Catalogue (Hog et al. 2000). ... where the star is absent in the second Tycho catalogue but is present in the first ...