NEXXUS - The database for Nearby X-ray and extreme UV emitting Stars

Star Page     -     Gl 663B   LHS 438     



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ROSAT Survey Field Image Browser      Simbad Objects


Star Information:

RA (2000.0) DE (2000.0) Mu Theta Radial Velocity Spectral Type V B-V R-I MV Pi Distance
17 15 21 - 26 36.2 1.2381 202.5 0.6 K1 V e 5.09 6.2 167.08 ± 1.07 5.99


ROSAT All-Sky Survey (RASS):

Detection Number Count Rate Background Exposure Time Likeli HR1 HR2 log Lx
1RXS J171521.5-263558 0.8541 ± 0.05778 0.00099 291 664 -0.59 ± 0.05 -0.21 ± 0.14 28.34


ROSAT Position Sensitive Proportional Counter (PSPC):

Detection Number Sequence Id Count Rate Background Likeli OAX Exposure Time Observation Time HR1 HR2 Images log Lx
2RXP J171521.0-263557 201373 n00.003 1.171 ± 0.0257 0.000969 9999 1 1783 920921 to 920922 -0.46 ± 0.02 -0.25 ± 0.04 rgb rgbd 28.48


ROSAT Position Sensitive Proportional Counter with filter (PSPCF):

Detection Number Sequence Id Count Rate Background Likeli OAX Exposure Time Observation Date HR1 HR2 Images log Lx
2RXF J171521.0-263557 201373 n00.002 0.2651 ± 0.0139 0.000422 3394 1 1429 920922 to 920922 0.3 ± 0.05 -0.06 ± 0.06 rgb rgbd 28.53


ROSAT High Resolution Imager (HRI):

Detection Number Sequence Id Count Rate SNR OAX Exposure Time Observation Date Images log Lx
1RXH J171520.9-263601 202164 n00.001 0.1461 ± 0.0086 14.2 1 1973 960225 to 960313 rgb rgbd 28.18




Last modified on Thursday, 23 October 2003.   C. Liefke | Impressum