K 4-14

SUSPECTED MILKY WAY

Constellation
Aquila

Equatorial coordinates
α = 19 04 39.547
δ = +01 22 17.852

Galactic coordinates
l = 35.6617°
b = -2.3145°

Suspected	2016^Ref
Confirmed	-
Symbiotic IR type	S?^Ref
Hot component type	-
Outbursts	-

Identifiers

K 4-14	IRAS 19021+0117	GSC2.4.2 N1O4282640	AAVSO 000-BDF-853
SIMBAD V* V1561 Aql	Pan-STARRS 109642861650056264	SAO -	VSX 2700
GAIA DR3 4267554379495503616	SkyMapper -	WRAY -	GCVS V1561 Aql
2MASS J19043956+0122180	HIP -	Hen -	BD -
WISE J190439.55+012218.1	TYC -	ESO -	HD -

Symbiotic Catalogs

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

Position

Right ascension (°)	286.1648^Ref	Parallax (mas)	0.342±0.124^Ref	Reddening E(B-V) (mag)	1.49±0.09^Ref ^{, Note}
Declination (°)	1.3716^Ref	Distance (kpc)	3.55^Ref ^{, Note}, 2.39^Ref ^{, Note}
Galactic longitude (°)	35.6617^Ref	Proper motion in α (mas/yr)	-5.50±0.13^Ref
Galactic latitude (°)	-2.3145^Ref	Proper motion in δ (mas/yr)	-1.86±0.11^Ref

Observations

X-Ray	-	IR type	S?^Ref	Radio	-
X-Ray type	-	J (mag)	7.14^Ref	Flickering	-
GALEX FUV (mag)	-	H (mag)	5.94^Ref	Outbursts	-
GALEX NUV (mag)	-	K (mag)	5.25^Ref	Outburst type	-
IUE	No^Ref	WISE W1 (mag)	4.98^Ref	Jets	-
FUSE	No^Ref	WISE W2 (mag)	4.05^Ref	Resolved nebula	-
U (mag)	-	WISE W3 (mag)	3.37^Ref	IPmax (eV)	-
B (mag)	18.30^Ref	WISE W4 (mag)	2.13^Ref	[O III] lines	-
V (mag)	-	IRAS 12μm (Jy)	4.99^Ref	He II lines	-
R (mag)	-	IRAS 25μm (Jy)	1.77^Ref	[Fe VII] lines	-
I (mag)	-	IRAS 60μm (Jy)	7.69^Ref	O VI lines	-
BP (mag)	17.72^Ref	IRAS 100μm (Jy)	103.00^Ref
G (mag)	13.19^Ref	AKARI S09 (Jy)	2.15^Ref
RP (mag)	11.21^Ref	AKARI S18 (Jy)	1.55^Ref

Orbit

Orbital period (days)	-	γ velocity (km/h)	-	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	M4-6^Ref	Mass (M_⊙)	-	Pulsation	Yes^Ref
Eff. temperature (K)	-	Radius (R_⊙)	-	Type	Mira^Ref
IR type	S?^Ref	Luminosity (L_⊙)	-	Pulsation period (days)	290^Ref
Metallicity [Fe/H]	-			Pulsation ephemeris	Max = 2440990 + 290 x E^Ref

Hot component

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

Links

SIMBAD CDS Portal

Notes

Listed as a symbiotic star candidate in the HASH Database of PNe (Parker et al., 2016), this object is also considered a possible Mira variable (Rosino et al., 1997) and a long-period variable (Mowlavi et al., 2018).

References

Mowlavi, N., Lecoeur-Taïbi, I., Lebzelter, T. et al., 2018, A&A, 618, A58, 2018A&A...618A..58M
Parker, Q. A., Bojičić, I. S., Frew, D. J., 2016, JPhCS, 728, 3, 032008, 2016JPhCS.728c2008P
Rosino, L., Ortolani, S., Barbuy, B. et al., 1997, MNRAS, 289, 3, 745, 1997MNRAS.289..745R

Last updated: March 25, 2022