V4074 Sgr

CONFIRMED MILKY WAY

Constellation
Sagittarius

Equatorial coordinates
α = 18 16 05.582
δ = -30 51 11.225

Galactic coordinates
l = 1.5935°
b = -6.6891°

Suspected	1975^Ref
Confirmed	1975^Ref
Symbiotic IR type	S^Ref
Hot component type	shell-burning^Ref
Outbursts	Yes^Ref - SyRN?^Ref

Identifiers

V4074 Sgr	IRAS -	GSC2.4.2 S9SM000574	AAVSO 000-BCB-798
SIMBAD TYC 7392-1189-2	Pan-STARRS 70972740232766529	SAO -	VSX 31774
GAIA DR3 4049372373000960128	SkyMapper -	WRAY -	GCVS V4074 Sgr
2MASS J18160555-3051125	HIP 89526	Hen 3-1641	BD -
WISE J181605.54-305112.7	TYC -	ESO -	HD -

Symbiotic Catalogs

Bidelman (1954)	-	Allen (1984)	AS 295B (Conf.)	Belzcyński et al. (2001)	V4074 Sgr (Conf.)
Gaposchkin (1957)	-	Kenyon (1986)	AS 295B (Conf.)	Akras et al. (2019)	V4074 Sgr (Conf.)
Boyarchuk (1969)	-	Vaidis (1988, 1991)	V4074 Sgr (Conf.)

Position

Right ascension (°)	274.0233^Ref	Parallax (mas)	0.505±0.018^Ref	Reddening E(B-V) (mag)	0.24±0.0^Ref ^{, Note}
Declination (°)	-30.8531^Ref	Distance (kpc)	1.89^Ref ^{, Note}, 1.89^Ref ^{, Note}
Galactic longitude (°)	1.5935^Ref	Proper motion in α (mas/yr)	0.03±0.02^Ref
Galactic latitude (°)	-6.6891^Ref	Proper motion in δ (mas/yr)	-1.45±0.02^Ref

Observations

X-Ray	No^Ref	IR type	S^Ref	Radio	No^Ref
X-Ray type	-	J (mag)	9.07^Ref	Flickering	No^Ref
GALEX FUV (mag)	-	H (mag)	7.96^Ref	Outbursts	Yes^Ref
GALEX NUV (mag)	-	K (mag)	7.75^Ref	Outburst type	SyRN?^Ref
IUE	Yes^Ref	WISE W1 (mag)	7.42^Ref	Jets	-
FUSE	No^Ref	WISE W2 (mag)	7.53^Ref	Resolved nebula	-
U (mag)	-	WISE W3 (mag)	7.37^Ref	IPmax (eV)	235^Ref, 24.6^Ref
B (mag)	-	WISE W4 (mag)	5.32^Ref	[O III] lines	No^Ref
V (mag)	13.80^Ref	IRAS 12μm (Jy)	-	He II lines	Yes^Ref, No^Ref
R (mag)	-	IRAS 25μm (Jy)	-	[Fe VII] lines	No^Ref
I (mag)	-	IRAS 60μm (Jy)	-	O VI lines	Yes^Ref, No^Ref
BP (mag)	12.24^Ref	IRAS 100μm (Jy)	-
G (mag)	11.54^Ref	AKARI S09 (Jy)	-
RP (mag)	10.69^Ref	AKARI S18 (Jy)	-

Orbit

Orbital period (days)	-	γ velocity (km/h)	-2.55±0.22^Ref	Size of giant’s orbit (AU)	-
Eccentricity	-	RV of giant (km/h)	-	Separation (AU)	-
Inclination (°)	-	Inferior conj. of giant (JD)	-	Mass function	-
Eclipses	-			Mass ratio	-
Orbital ephemeris	-

Cool component

Spectral type	M4 III^Ref	Mass (M_⊙)	-	Pulsation	Yes^Ref
Eff. temperature (K)	-	Radius (R_⊙)	-	Type	SR^Ref
IR type	S^Ref	Luminosity (L_⊙)	-	Pulsation period (days)	118±2^Ref
Metallicity [Fe/H]	-			Pulsation ephemeris	-

Hot component

Type/Spectral type	-	Mass (M_⊙)	-	Spin period (min)	-
Shell-burning/Accreting-only	shell-burning^Ref	Radius (R_⊙)	-	Accretion disk	-
Eff. temperature (K)	-	Luminosity (L_⊙)	-
Lower limit (K)	-
Upper limit (K)	-

Links

SIMBAD CDS Portal

Notes

Herbig & Hoffleit (1975) reported strong coronal lines in the spectrum.

References

Allen, D. A., 1984, PASA, 5, 3, 369, 1984PASA....5..369A
Gromadzki, M., Mikołajewska, J., Soszyński, I., 2013, AcA, 63, 4, 405, 2013AcA....63..405G
Harrison, T. E., Johnson, J. J., Spyromilio, J., 1993, AJ, 105, 320, 1993AJ....105..320H
Herbig, G. H., Hoffleit, D., 1975, ApJL, 202, L41, 1975ApJ...202L..41H
Munari, U., 1997, Physical Processes in Symbiotic Binaries and Related Systems, 37, 1997ppsb.conf...37M
Wallerstein, G., 1986, A&A, 163, 337, 1986A&A...163..337W

Last updated: April 18, 2022