16311-2405 REP 41

16^h 31^m 04.37^s -24° 04' 33.3" P.A. 122.00 sep 13.1 mag 12.35,14.30 Sp Ke

Coord 2000	16311-2405	Discov num	REP 41	Comp		Coord arcsec 2000	16 31 04.37 -24 04 33.3
Date first	1989	Date last	2015	Obs	6
Pa first	122	Pa last	122.4	P.A. Now (θ)	122.4°
Sep first	12.9	Sep last	13.056	Sep. Now (ρ)	13.056"
Mag pri	12.35	Mag sec	14.30	delta mag (ΔM)	1.95	Spectral class	Ke (yellow-orange)
Pri motion ra	-008	Sec motion ra	+002
Pri motion dec	-018	Sec motion dec	-029
Notes	N (See Notes)

rPM=0.511

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Ophiuchus

Gaia DR2

6050627747672189312

SUSPECTED ORBITAL ELEMENTS

Identifier	16311-2405
coord_arcsec_2000	163104.36-240433.3

Period (P)	592.19d	± 0.09	Periastron (T)	53656.22m (2005.783y)	± 0.72	Semi-major axis (a)	15.4m	± 1.5
Eccentricity (e)	0.617	± 0.006	Inclination (i)	86.9°	± 1.2	Longitude of periastron (ω)	233.56°	± 0.56
Node (Ω)	263.5°	± 7.1	Notes	n		Reference	LeB2014
Equinox			Last observation	2013		Grade	8	(1=Definitive, 9=Indet.)

label	theta	rho
2000-01-01	266.7	0.017
2001-01-01	259.7	0.005
2002-01-01	273.3	0.007
2003-01-01	265.1	0.019
2004-01-01	79.0	0.007
2005-01-01	268.0	0.014
2006-01-01	263.3	0.014
2007-01-01	294.1	0.002
2008-01-01	266.0	0.018
2009-01-01	84.9	0.006
2010-01-01	270.0	0.010
2011-01-01	264.4	0.018
2012-01-01	68.9	0.003
2013-01-01	267.0	0.016
2014-01-01	261.3	0.008
2015-01-01	274.9	0.006
2016-01-01	265.3	0.019
2017-01-01	80.3	0.007
2018-01-01	268.3	0.013
2019-01-01	263.6	0.015
2020-01-01	318.5	0.001
2021-01-01	266.2	0.018
2022-01-01	88.4	0.003
2023-01-01	270.7	0.009
2024-01-01	264.6	0.018
2025-01-01	73.3	0.004
2026-01-01	267.2	0.016
2027-01-01	262.1	0.010
2028-01-01	277.2	0.005
2029-01-01	265.5	0.019
2030-01-01	81.4	0.008

Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.

Measures: green=micrometric, blue=interferometric, purple=photographic

WDS 16311-2405 REP 41 : NOTES

discov_num	notes	refcode
REP 41	A: HBC 644 = Haro 1-14c PMS binary resolved by Keck Interferometer.
	The orbit is based on V^2 measurements obtained 2004-2007, plus radial
	velocity data from 2001-2007. The best-fit masses and distance from
	statistical analysis of the orbital solutions are 0.961 +0.265/-0.083
	and 0.326 +0.092/-0.023 Msun; 111 +19/-18 pc. A comparison with
	evolutionary tracks suggests an age of 3-4 Myr.	Sfr2008
	A combined solution yielded masses 0.905 +/- 0.043 and 0.308 +/- 0.011
	Msun, plus a distance of 95.55 +/- 9 pc.	LeB2014

REFERENCES

refcode	metd	author	reference
LeB2014	A -	Le Bouquin, J.-B., Monin, J.-L., Berger, J.-P., Prato, L., Benisty, M., &	2014A&A...561A..101
LeB2014	+orb	Schaefer, G.
LeB2014		A&A 561, A101, 2014
Sfr2008	orb -	Schaefer, G.H., Simon, M., Prato, L., & Barman, T.	2008AJ....135.1659S
Sfr2008	+Kk	AJ 135, 1659, 2008

DISCOVERER

idgroup	discov	author
1	REP	Reipurth, B. & Gee, G.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
16311-2405	REP 41		2004	3	123	13.0	13.75		Ke	D	163104.37-240433.3
16311-2405	REP 41		2010	5	123	12.8	12.35	14.30	Ke	N	163104.37-240433.3
16311-2405	REP 41		2015	6	122	13.1	12.35	14.30	Ke	N	163104.37-240433.3

If you need more information about this double, apply for a data request form to the WDS.

WDS 16311-2405 REP 41 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 16311-2405 REP 41 : MEASURES

No records found.

WDS 16311-2405 : VIRTUAL EYEPIECE

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WDS 16311-2405 : ALADIN DSS IMAGE @ 16^h 31^m 04.37^s -24° 04' 33.3"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 16311-2405 REP 41 : NEIGHBORHOODS

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Pass over with the mouse cursor to display the catalog designation.

Show	name	coord_2000	discov#	comp	pa	sep	dist(')
Show		16311-2405	REP 41		122	13.1
Show		16315-2425	REP 42	CD	37	3.5	21
Show		16313-2430	OCC9162	Ba,Bb	-1	0.0	26
Show		16313-2430	COR 9	Aa,Ab	159	0.3	26
Show		16313-2430	BRT3030	AB	12	4.5	26
Show		16312-2434	CRE 1	BD	226	0.5	29
Show		16312-2434	RAT 18	Ba,Bb	158	0.1	29
Show		16312-2434	RAT 18	BC	270	1.2	29
Show		16312-2434	GHE 26	Aa,Ab	162	0.4	30
Show		16312-2434	BOV 56	AB	353	79.1	30
Show		16324-2429	LOO 8	AB	321	5.3	30
Show		16324-2429	CHX 16	Aa,Ab	43	0.4	30
Show		16306-2434	CHT 4		191	0.0	31
Show		16296-2436	TOK 782		129	0.2	38
Show		16322-2440	BNY 3	AB	82	0.1	39
Show		16322-2440	BNY 3	AC	85	0.8	39
Show		16322-2440	BNY 3	BC	85	0.8	39
Show		16285-2423	GHE 24		234	0.0	40
Show		16288-2428	GHE 25	AB	88	0.2	40
Show		16288-2428	OCC9161	Aa,Ab	150	0.0	40
Show		16282-2416	OCC9160		-1	0.0	42
Show		16282-2352	RAT 16		267	0.1	42
Show		16277-2359	FTV 1		319	1.5	47
Show		16276-2358	AGE 7	AB	331	9.9	48
Show		16276-2358	BOV 59	AC	169	47.1	48
Show		16278-2425	RAT 13		198	0.3	49
Show		16278-2426	RAT 14		207	0.1	50
Show		16277-2422	GHE 23		353	0.6	50
Show		16281-2435	DCH 87		84	8.0	52
Show		16279-2432	HCH 6	AB	324	7.3	52
Show		16279-2432	DCH 84	AC	202	7.1	52
Show		16279-2432	DCH 84	AD	86	9.0	52
Show		16319-2455	DCH 88		319	6.4	52
Show		16278-2432	DCH 83	AB	161	2.2	53
Show		16278-2432	DCH 83	AC	56	3.3	53
Show		16319-2456	HDP 2	AB	241	3.0	53
Show		16319-2456	CON 29	AC	127	14.7	53
Show		16280-2436	DCH 86	AB	116	6.8	53
Show		16280-2436	DCH 86	AC	113	7.2	53
Show		16319-2456	DCH 97	Ba,Bb	93	0.1	54
Show		16320-2456	DCH 90	AB	180	7.8	54
Show		16320-2456	CON 30	Aa,Ab	200	0.6	54
Show		16320-2457	DCH 89		300	2.8	54
Show		16276-2431	HCH 5		122	15.3	54
Show		16275-2427	CST 9	Ba,Bb	258	0.2	55
Show		16275-2427	YLW 17	AB	134	33.0	55
Show		16275-2427	SHC 1	AC	68	11.4	55
Show		16273-2424	DCH 76		215	5.6	56
Show		16280-2440	RAT 15		277	0.2	56
Show		16272-2419	ELA 2		176	6.3	56
Show		16275-2433	DCH 78		196	7.6	56

WDS 16311-2405 : COMPONENTS

	A
B	pa=124.8° sep=12.26"

16311-2405 A

Componente originario normalizzato	AB		Coord arcsec 2000	163104.37-240433.3		Mag	12.35		Spectral class	Ke (yellow-orange)
PmRA	-8.00		PmDE	-18.0

16311-2405 B

Componente originario normalizzato	AB		Coord arcsec 2000	163105.10-240440.3		Mag	14.3		PmRA	2.00
PmDE	-29.0		Calc delta mag	1.95		Calc coord	yes