16285-2423 GHE 24

16^h 28^m 32.69^s -24° 22' 45.0" P.A. 234.00 sep 0.0 mag 7.20,8.40 Sp G7

Coord 2000	16285-2423	Discov num	GHE 24	Comp		Coord arcsec 2000	16 28 32.69 -24 22 45.0
Date first	1990	Date last	2012	Obs	7
Pa first	227	Pa last	233.5	P.A. Now (θ)	233.5°
Sep first	0.1	Sep last	0.049	Sep. Now (ρ)	0.049"
Mag pri	7.20	Mag sec	8.40	delta mag (ΔM)	1.2	Spectral class	G7 (yellow)
Pri motion ra	-018	Sec motion ra
Pri motion dec	-021	Sec motion dec
Notes	O K (Orbital solution, K-band or other infrared magnitudes)

Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Ophiuchus

Gaia DR2

6049107428032112384

ORBITAL ELEMENTS

Period (P)	23.2y	± 1.1	Periastron (T)	2002.6y	± 7.7	Semi-major axis (a)	0.048a	± 0.42
Eccentricity (e)	0.26	± 0.73	Inclination (i)	130°	± 37	Longitude of periastron (ω)	67°	± 46
Node (Ω)	90°	± 43	Notes			Reference	Sfr2018
Equinox	2000		Last observation	2012		Grade	5	(1=Definitive, 9=Indet.)

label	theta	rho
2000	88.8	0.040
2001	73.4	0.036
2002	51.9	0.029
2003	18.4	0.024
2004	338.5	0.025
2005	309.7	0.032
2006	291.9	0.039
2007	279.6	0.046
2008	269.9	0.050
2009	261.4	0.052
2010	253.3	0.052
2011	245.1	0.051
2012	236.4	0.049
2013	226.8	0.047
2014	215.8	0.043
2015	203.2	0.041
2016	189.0	0.039
2017	173.6	0.038
2018	157.9	0.038
2019	142.9	0.039
2020	129.0	0.041
2021	116.2	0.042
2022	104.0	0.043
2023	91.4	0.041
2024	76.8	0.037
2025	57.0	0.030
2026	26.2	0.024
2027	346.0	0.024
2028	314.4	0.030
2029	294.9	0.038
2030	281.8	0.044

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

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

WDS 16285-2423 GHE 24 : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Sfr2018	orb j	Schaefer, G.H., Prato, L. & Simon, M.	2018AJ....155..109S
Sfr2018	+A	AJ 155, 109, 2018

DISCOVERER

idgroup	discov	author
1	GHE	Ghez, A.M., Neugebauer, G., Gorham, P.W., Haniff, C.A., Kulkarni, S.R., Matthews,
1	GHE	K., Koresko, C., & Beckwith, S.
14	GHE	Ghez, A.M., Duchene, G., Matthews, K., Hornstein, S.D., Tanner, A., Larkin, J.,
14	GHE	Morris, M., Becklin, E.E., et al.
15	GHE	Ghez, A.M., Salim, S., Hornstein,S.D., Tanner, A., Lu, J.R., Morris, M.,
15	GHE	Becklin, E.E., & Duchene, G.
16	GHE	Boehle, A., Ghez, A.M., Schodel, R., Meyer, L., Yelda, S., Albers, S.,
16	GHE	Martinez, G.D., Becklin, E.E., Do, T., Lu, J.R., Matthews, K., Morris, M., et al.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
16285-2423	GHE 24		1994	5	164	0.2	14.15				162832.69-242245.0
16285-2423	GHE 24		2012	7	234	0.0	7.20	8.40	G7	K	162832.69-242245.0

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

WDS 16285-2423 GHE 24 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 16285-2423 GHE 24 : MEASURES

No records found.

WDS 16285-2423 : VIRTUAL EYEPIECE

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

WDS 16285-2423 : ALADIN DSS IMAGE @ 16^h 28^m 32.69^s -24° 22' 45.0"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 16285-2423 GHE 24 : 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		16285-2423	GHE 24		234	0.0
Show		16288-2428	GHE 25	AB	88	0.2	7
Show		16288-2428	OCC9161	Aa,Ab	150	0.0	7
Show		16282-2416	OCC9160		-1	0.0	9
Show		16278-2425	RAT 13		198	0.3	11
Show		16278-2426	RAT 14		207	0.1	11
Show		16277-2422	GHE 23		353	0.6	12
Show		16279-2432	HCH 6	AB	324	7.3	13
Show		16279-2432	DCH 84	AC	202	7.1	13
Show		16279-2432	DCH 84	AD	86	9.0	13
Show		16281-2435	DCH 87		84	8.0	14
Show		16278-2432	DCH 83	AB	161	2.2	14
Show		16278-2432	DCH 83	AC	56	3.3	14
Show		16276-2431	HCH 5		122	15.3	15
Show		16275-2427	CST 9	Ba,Bb	258	0.2	16
Show		16275-2427	YLW 17	AB	134	33.0	16
Show		16275-2427	SHC 1	AC	68	11.4	16
Show		16280-2436	DCH 86	AB	116	6.8	16
Show		16280-2436	DCH 86	AC	113	7.2	16
Show		16275-2433	DCH 78		196	7.6	17
Show		16274-2430	ALO 9	CD	313	8.5	17
Show		16273-2424	DCH 76		215	5.6	18
Show		16275-2431	CST 10	Aa,Ab	353	0.5	18
Show		16275-2431	DCH 77	AB	314	8.8	18
Show		16274-2430	ALO 8	AB	84	6.0	18
Show		16271-2426	ALO 5	Ba,Bb	48	0.3	19
Show		16271-2426	ALO 5	BD	145	7.3	19
Show		16273-2429	RAT 12	Ca,Cb	284	0.2	19
Show		16273-2429	YLW 12	AB	66	8.6	19
Show		16273-2429	YLW 12	AC	128	15.8	19
Show		16273-2429	YLW 12	AD	61	25.5	19
Show		16280-2440	RAT 15		277	0.2	20
Show		16272-2419	ELA 2		176	6.3	20
Show		16296-2436	TOK 782		129	0.2	20
Show		16277-2439	DCH 82	AB	100	6.4	20
Show		16277-2439	DCH 82	AC	80	8.1	20
Show		16277-2439	DCH 82	AD	254	9.8	20
Show		16271-2426	YLW 10	AB	100	132.4	21
Show		16271-2426	YLW 10	AC	65	149.5	21
Show		16279-2441	AGE 8		251	0.4	21
Show		16276-2439	DCH 80		102	3.3	21
Show		16276-2438	DCH 79		84	6.3	21
Show		16271-2429	CST 7		321	0.8	21
Show		16269-2421	DCH 75	CE	78	7.3	22
Show		16269-2422	RAT 11		202	0.2	23
Show		16269-2421	DCH 73	BD	187	8.0	23
Show		16275-2440	YLW 16	AB	102	24.0	23
Show		16275-2440	TER 2	Aa,Ab	267	0.3	23
Show		16269-2429	DCH 74		205	9.3	23
Show		16269-2426	RAT 10		134	0.1	23
Show		16269-2421	DCH 72	Aa,Ab	207	1.0	24

WDS 16285-2423 : COMPONENTS

	A
B	pa=230.9° sep=0.05"

16285-2423 A

Componente originario normalizzato	AB		Coord arcsec 2000	162832.69-242245.0		Mag	7.2		Spectral class	G7 (yellow)
PmRA	-18.00		PmDE	-21.0

16285-2423 B

Componente originario normalizzato	AB		Coord arcsec 2000	162832.69-242245.0		Mag	8.4		Calc delta mag	1.2
Calc coord	yes