final class Tycho2Catalog extends Object implements RecordParser
Record details:
Byte 14: X indicates that the position is missing Byte 153..164: RA in degrees 1234.12345678 Byte 166..177: Dec in degrees 1234.12345678, leading sign Byte 111..116: BTMag 123.123 Byte 124..129: VTMag
There are two positions given in this catalog. Here, We take the one that is always present.
Approximate Johnson photometry; can derive V and color B-V, from VT, BT using:
V=VT-0.090*(BT-VT) B-V=0.850*(BT-VT)Internally, B-V is mapped to a representative approximate temperature.
Records discarded by this parser:
Constructor and Description |
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Tycho2Catalog() |
Tycho2Catalog()
public Star parse(String aLine)
parse
in interface RecordParser
Starfield - Copyright Hirondelle Systems. Published March 1, 2014