2004A&A...419..285F

C.D.S. - SIMBAD4 rel 1.7 - 2021.03.07CET04:58:05

2004A&A...419..285F - Astronomy and Astrophysics, volume 419, 285-290 (2004/5-3)

Infrared and visual lunar occultations measurements of stellar diameters and new binary stars detections at the Calar Alto 1.5m telescope.

FORS O., RICHICHI A., NUNEZ J. and PRADES A.

Abstract (from CDS):

We present a program of routine lunar occultations, at optical and near-IR wavelengths, recently started at the 1.5m Spanish telescope at the Calar Alto Observatory. Both a CCD and an infrared array detector are used. The program is aimed mainly at the detection and investigation of binary systems, although results in other areas of stellar research are also anticipated. Occultations are reported for a total of 40 stars. Among these, SAO 164567, SAO 78258 and AG+24 788 have been discovered to be binaries, with projected separations as small as 0.006". Furthermore, binarity is suspected in the case of SAO 78119 and SAO 79251. Additionally, the angular diameter of the late-type giant 30 Psc and of the infrared star V349 Gem have been accurately measured, the latter for the first time. We finally evaluate the instrumentation performance in terms of the limiting magnitude and angular resolution, and discuss applications to larger telescopes.

Abstract Copyright: ∼

Journal keyword(s): astrometry - occultations - stars: binaries: close - stars: binaries: visual - instrumentation: detectors

Simbad objects: 40

Full paper

View the reference in ADS

Number of rows : 40

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2021	#notes
1	HD 224829	*	00 01 02.7595005907	-05 50 06.005493932		8.21	7.79			F3II/III	17	0
2	HD 224840	*	00 01 07.3272893200	-05 52 27.644129866		8.93	7.64			K3III	8	0
3	* 30 Psc	LP?	00 01 57.6152259896	-06 00 50.668429443	7.88	6.04	4.41	2.85	1.44	M3III	132	0
4	HD 251971	*	06 07 56.5405127520	+23 40 13.511779443	10.06	9.63	9.10			F0	12	0
5	HD 42768	*	06 13 39.9722050995	+23 44 42.384563390		9.41	8.10			K0	8	0
6	BD+23 1258	*	06 14 09.1832126625	+23 57 16.685820022		8.59	7.87			G5	5	0
7	* 8 Gem	*	06 16 19.0467609210	+23 58 12.107211391		6.984	6.075			G8III	34	0
8	* 9 Gem	s*b	06 16 58.7058947017	+23 44 27.286451876	6.31	6.70	6.25	5.78	5.38	B3Iab	226	0
9	HD 43560	*	06 17 56.0971830475	+23 52 51.761184805		10.12	8.38			M3	6	0
10	HD 43647	*	06 18 22.3421100313	+23 48 57.670513715		9.42	8.20			K0	5	0
11	DO 12097	*	06 18.9	+23 50						K5	2	0
12	* 10 Gem	*	06 18 54.4266951037	+23 36 11.817968315	8.030	7.450	6.550			G5	16	0
13	IRAS 06175+2347	C*	06 20 36.4762998760	+23 46 29.635951206		17.42	13.48	13.97		C	10	0
14	HD 44108	*	06 20 59.5162637035	+23 59 15.189644915		8.78	8.23			G0	8	0
15	HD 44251	*	06 21 49.1883160868	+23 45 38.281407196		8.63	7.29			K0	5	0
16	HD 54616	PM*	07 10 29.5823974894	+24 06 29.333346467		8.42	7.95			F5	21	0
17	BD+24 1550	*	07 11 31.5559068011	+24 11 20.466712722		11.72	10.25			K0	3	0
18	* 48 Gem	*	07 12 26.3764838211	+24 07 42.936318517	6.30	6.21	5.85			F5III-IV	67	0
19	BD+24 1564	*	07 12 52.8081434087	+24 05 52.315264362		9.96	9.22			G5	4	0
20	BD+24 1578	*	07 14 33.2518866676	+24 00 27.514617623		9.13	8.67			F5	3	0
21	HD 55801	*	07 15 29.6454094454	+23 51 23.812533879		8.80	7.90			G5	10	0
22	HD 56077	PM*	07 16 36.3317035081	+23 52 59.166969424		8.49	8.05			F8	5	0
23	BD+24 1598	*	07 17 43.0773865973	+23 59 47.352068444		9.81	8.74			K0	6	0
24	HD 56462	**	07 18 03.95741	+24 04 38.8724		8.63	8.41			F5	14	1
25	BD+24 1613	*	07 18 57.0540382004	+23 56 42.684986530		11.18	10.24			G0	3	0
26	BD+24 1625	*	07 20 44.6997905562	+23 45 48.452851547		11.35	10.34			K0	3	0
27	HD 57107	*	07 20 46.1909052863	+23 37 50.494447330		8.44	8.33			A2	7	0
28	BD+24 1632	*	07 21 47.9810706625	+23 51 06.945470973		10.60	9.47			K2	3	0
29	BD+23 1703	*	07 24 25.5187761932	+23 24 59.070089844		10.69	9.28			K7	3	0
30	IRAS 07231+2349	LP*	07 26 08.8384063309	+23 43 52.848589125		13.24	10.96			~	3	0
31	HD 177242	*	19 04 48.8959053071	-24 48 56.968563257		9.70	8.25			K1/2III	7	0
32	HD 177426	*	19 05 37.3606909203	-24 40 30.657848461		8.68	7.32			K2III	5	0
33	HD 198261	*	20 49 50.4900060596	-21 53 36.145144504		9.59	8.61			G8III	6	0
34	HD 198521	*	20 51 27.8556547728	-21 55 17.125300329		10.67	9.48			K1/2III	8	0
35	HD 205992	*	21 39 31.2068382754	-19 12 58.174717032		8.91	8.51			F0III/IV	7	0
36	HD 206146	*	21 40 34.7694108378	-18 53 44.313592275		8.94	7.34			K5III	13	0
37	HD 213166	*	22 29 48.4821217083	-14 48 47.342467209		10.40	9.22			K1/2III	5	0
38	HD 213250	PM*	22 30 22.0249919699	-14 47 06.737455737		10.08	9.42			G2/3V	6	0
39	HD 213346	PM*	22 30 58.0859502499	-14 34 01.159936718		9.02	7.75			K0III	9	0
40	HD 219279	*	23 14 40.1725229463	-10 41 19.389707279		7.64	6.12			K4III	18	0

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