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Description Catalog Data Default Radius (arcmin) Mission Table Type
Tycho-2 Catalog of the 2.5 Million Brightest Stars tycho2N
3
 STAR CATALOG Object

1. Enter any constraints on the query below. [ Help on constraint syntax ]

(What about wildcards, spaces, and case sensitivity?)

2. To change the fields that are returned, select the box in the "View" column beside each field desired.

3. To sort the results by any field, select one box in the "Sort" column beside the field to sort on.


 Parameter (Unit) Min Value Max Value Value Type
name TYC 1-100-1 TYC 999-999-1 string
ra 00 00 00.0687 23 59 59.9779 position
dec -89 53 22.699 +89 49 56.360 position
vt_mag 1.905 15.193 float
vt_mag_error 0.009 1.468 float
pm_ra (mas/yr) -4418.0 6544.2 float
pm_ra_error (mas/yr) 0.2 11.5 float
pm_dec (mas/yr) -5774.3 10277.3 float
pm_dec_error (mas/yr) 0.2 10.3 float
position_flag P X string
mean_ra (degree) 0.00033949 359.99988138 float
mean_dec (degree) -89.88966316 89.83233298 float
mean_ra_error (mas) 3 183 integer
mean_dec_error (mas) 1 184 integer
mean_ra_epoch (yr) 1915.95 1992.53 float
mean_dec_epoch (yr) 1911.94 1992.01 float
num_positions 2 36 integer
gof_mean_ra 0.0 9.9 float
gof_mean_dec 0.0 9.9 float
gof_pm_ra 0.0 9.9 float
gof_pm_dec 0.0 9.9 float
bt_mag 2.183 16.581 float
bt_mag_error 0.014 1.977 float
proximity 3 999 integer
tycho1_star T T string
hip_number 1 120404 integer
ccdm_components A S string
lii (degree) 0.00020243 359.99992071 float
bii (degree) -89.90907262 89.89967151 float
observed_ra (degree) 0.00028639 359.99990778 float
observed_dec (degree) -89.88963861 89.83232222 float
observed_ra_epoch (yr) 1990.81 1992.13 float
observed_dec_epoch (yr) 1990.72 1992.36 float
observed_ra_error (mas) 3.1 200.0 float
observed_dec_error (mas) 3.1 200.0 float
solution_type D P string
ra_dec_corr -0.9 0.8 float

4. Do you want to change your current query settings?


(e.g. 'Cyg X-1' or '12 00 00, 4 12 6')
Use semicolons (;) to separate multiple object names or coordinate pairs (e.g. 'Cyg X-2; 12.235, 15.345').
Default uses the optimum radius for each catalog searched.

Not all tables have observation dates/times. For those that do, the time portion of the date is optional.
Times are always in UTC. Separate multiple dates/ranges with semicolons (;). Range operator is '..'
(e.g. '1992-12-31; 48980.5; 1995-01-15 12:00:00; 1997-03-20 .. 2000-10-18').
rows
Select to display all catalog parameters instead of only defaults.

5.


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