NEXXUS 2 - The database for Nearby X-ray and extreme UV emitting Stars

Star Page - NS 2308-1524 GJ 890 HIP 114252 BD-16 6218 HK Aqr

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ROSAT Survey Field Image Browser SIMBAD entry

Star Information:

RA (2000.0)	DE (2000.0)	μ [ "/yr ]	θ [ ° ]	Radial Velocity	Spectral Type	B	V	R_c	I_c	J	K_s	H	Distance [ pc ]

23 08 19.55	-15 24 35.54	0.104	103.4	2	M0	12.26	10.84	9.95	9	8.01	7.29	7.09	22.58

XMM-Newton Pointed Observations:


Detection Number	Sequence Id	Observation Time	Likelihood	log L_x	ESAC Links

2XMM J230819.6-152435	0202360101 1	2005-05-17T11:26 to 2005-05-18T16:35	999.9999	29.04	Postcard Server Observing Log

PN data not included in the catalogue. See introduction for details.

Detector	Filter	Count Rate	Exposure Time	Likelihood	OAX	HR1	HR2	HR3	HR4	log L_x
M1	Medium	0.29879 ± 0.00208	74204	999.9999	0.142	0.464 ± 0.007	-0.311 ± 0.008	-0.789 ± 0.008	-0.858 ± 0.025	29.03
M2	Medium	0.30791 ± 0.00212	74318	999.9999	1.132	0.467 ± 0.007	-0.318 ± 0.007	-0.791 ± 0.008	-0.839 ± 0.025	29.04

ROSAT All-Sky Survey (RASS):


Detection Number	Count Rate	Background	Exposure Time	Likelihood	HR1	HR2	log L_x

1RXS J230820.0-152436	0.4266 ± 0.05864	0.00099	138	108	-0.26 ± 0.14	-0.08 ± 0.24	29.19

ROSAT Position Sensitive Proportional Counter (PSPC):


Detection Number	Sequence Id	Count Rate	Background	Likeli	OAX	Exposure Time	Observation Time	HR1	HR2	Images	log L_x

2RXP J230819.4-152435	201752 n00.008	0.4051 ± 0.00973	0.00098	4426	0	4406	1993-11-29 to 1993-11-29	-0.13 ± 0.02	-0.14 ± 0.04	rgb rgbd	29.17

EUVE sources detected in other ways:


Detection Number	RA (2000.0)	DE (2000.0)	58-174 Å Count Rate	156-234 Å Count Rate	67-178 Å Count Rate	157-364 Å Count Rate

EUVE J2308-154	23 08 19	-15 24.5	0.023	0.048

Last modified on Tuesday, 28 October 2008. C. Liefke | Impressum