Datatype definitions
A datatype has been associated to each kind of observations recorded in
the database. A command
name is associated to each datatype.
To make the access easier, the list of datatypes is grouped by general
technical methods:
beta
measurements in the Hbeta system
betam
mean Hbeta data
ccd
CCD measurements in the UBV system
ccdric
CCD measurements in Cousins's RI system
ccdy
CCD measurements in the uvby system
cmd
mean values UBV for plotting the HR diagram
cmt
measurements in the system of Washington
ddo
meaurements in the DDO system
egg
measurements uvby in Eggen's modified system
gen
mean values from the Geneva catalogue
jhk
measurements in the JHK photometric system
mpg
measurements in the mpv, mpg system
pgh
measurements UBV photographic
pghm
mean values UBV photographic
rgu
measurements in the RGU photographic system
ric
measurements in Cousins's RI system
rie
measurements by Eggen in Kron's RI system
rij
measurements in Johnson's RI system
rik
measurements in Kron's RI system
sit
measurements UBV from video (SIT) cameras
ubv
measurements UBV photoelectric
ubvm
mean values UBV photoelectric
uvby
measurements uvby
uvbym
mean uvby values
vic
VI measurements in Cousins's system
vie
VI measurements in Kron's system
vil
measurements in the Vilnius system
vsn
projected rotational velocities
wal
measurements in the Walraven system
gpo
- objective prism radial velocities (GPO)
irv
- individual radial velocities
mk
- MK spectral types
mks
- selected MK types
mrv
- mean radial velocities from the literature
orb
- orbital elements of spectroscopic binaries
spt
- unidimensional spectral types (HD format)
apm
- absolute proper motion
coo
- coordinates (1950) from astrometric sources
idm1
- identifications (IDAM), first part
idm2
- identifications (IDAM), second part
ids
- identifications of double star components (IDS)
pos
- rounded off coordinates (1950)
rpm
- relative proper motion
tref
- references for cross-reference tables
tab
- cross-reference tables
baas
- information on ongoing work
bdp
- Budapest bibliography
gk
- list of red giants in the cluster field
hpd
- rectangular x,y positions
prm
- Geneva parameters
prob
- membership probabilities (proper motion)
probr
- membership probabilities (radial velocity)
rem
- remarks