V5856 Sagittarii information

V5856 Sagittarii
	; V5856 Sagittarii (left of center, circled in red) near its peak brightness and Venus (lower right)
Observation data; Epoch J2000 Equinox J2000
Constellation	Sagittarius
Right ascension	18h 20m 52.25s
Declination	−28° 22′ 12.1″
Apparent magnitude (V)	5.4 – <22
Characteristics
Variable type	Nova
Astrometry
Distance	4200+1200; −900 pc
Other designations
	PNV J18205200-2822100, ASASSN-16ma, V5856 Sgr, Nova Sagittarii 2016 No. 4
Database references
SIMBAD	data

The light curve of V5856 Sagittarii plotted from AAVSO data

V5856 Sagittarii, also known as Nova Sagittarii 2016 Number 4, was the 4th and brightest nova that occurred in the constellation Sagittarius during 2016. It was discovered by the All Sky Automated Survey for SuperNovae (which assigned to it the name ASASSN-16ma) on 25.02 October 2016, at which time it had an apparent visual magnitude of 13.7.^[7] It was independently discovered by Yukio Sakurai of Mito, Ibaraki, Japan on 26.38 October 2016, by which time it had reached magnitude 10.4.^[8] It reached its peak brightness of magnitude 5.4, making it visible to the naked eye, on 8 November 2016.^[4] The nova occurred within a region of the sky monitored by the OGLE microlensing experiment, and that group reported that no star brighter than magnitude 22 (I band) was seen at the nova's position prior to its eruption.^[1]

V5856 Sagittarii declined from peak brightness rapidly, fading by 2 magnitudes in 11.3 days, and 3 magnitudes in 14.5 days.^[9] It is therefore classified as a "fast" nova in the classification scheme of Cecilia Payne-Gaposchkin.^[10] The nova showed two peaks: a "fireball" peak corresponding to the freely expanding material ejected from the eruption and, nearly a week later, a second brighter peak coincident in time with the detection of γ-rays from the nova by Fermi-LAT. The fireball peak occurred at different times depending upon the wavelength of light being observed, but the second peak occurred at the same time for all wavelengths.^[11]

The location of V5856 Sagittarii (circled in red)

All novae are binary stars, with a "donor" star orbiting a white dwarf. The two stars are so close to each other that matter is transferred from the donor to the white dwarf. In the case of V5856 Sagittarii, the absence of a detection of a progenitor in the OGLE images suggests that the donor is a dwarf star.^[11]

^ ^a ^b ^c Cite error: The named reference mroz was invoked but never defined (see the help page).
^ Cite error: The named reference aav1 was invoked but never defined (see the help page).
^ Cite error: The named reference ate1 was invoked but never defined (see the help page).
^ ^a ^b Cite error: The named reference li was invoked but never defined (see the help page).
^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
^ Cite error: The named reference koji was invoked but never defined (see the help page).
^ Cite error: The named reference atel9669 was invoked but never defined (see the help page).
^ Cite error: The named reference IAU9286 was invoked but never defined (see the help page).
^ Cite error: The named reference ozdo was invoked but never defined (see the help page).
^ Cite error: The named reference payn was invoked but never defined (see the help page).
^ ^a ^b Cite error: The named reference muna was invoked but never defined (see the help page).

[mroz-1] Cite error: The named reference mroz was invoked but never defined (see the help page).

[aav1-2] Cite error: The named reference aav1 was invoked but never defined (see the help page).

[ate1-3] Cite error: The named reference ate1 was invoked but never defined (see the help page).

[li-4] Cite error: The named reference li was invoked but never defined (see the help page).

[SIMBAD-5] Cite error: The named reference SIMBAD was invoked but never defined (see the help page).

[koji-6] Cite error: The named reference koji was invoked but never defined (see the help page).

[atel9669-7] Cite error: The named reference atel9669 was invoked but never defined (see the help page).

[IAU9286-8] Cite error: The named reference IAU9286 was invoked but never defined (see the help page).

[ozdo-9] Cite error: The named reference ozdo was invoked but never defined (see the help page).

[payn-10] Cite error: The named reference payn was invoked but never defined (see the help page).

[muna-11] Cite error: The named reference muna was invoked but never defined (see the help page).

V5856 Sagittarii information

and 26 Related for: V5856 Sagittarii information

V5856 Sagittarii

Chi Sagittarii

Theta Sagittarii

Xi Sagittarii

Xi2 Sagittarii

Theta2 Sagittarii

Nu Sagittarii

Chi1 Sagittarii

Iota Sagittarii

Chi3 Sagittarii

Kappa1 Sagittarii

Theta1 Sagittarii

Nu1 Sagittarii

Rho2 Sagittarii

Rho1 Sagittarii

Kappa2 Sagittarii

Xi1 Sagittarii

Nu2 Sagittarii

List of novae in the Milky Way galaxy

Beta2 Sagittarii

Beta Sagittarii

Kappa Sagittarii

HD 165185

HD 167665

Beta1 Sagittarii

HD 182681

Observation data Epoch J2000 Equinox J2000
V5856 Sagittarii (left of center, circled in red) near its peak brightness and Venus (lower right)
Constellation	Sagittarius
Right ascension	18^h 20^m 52.25^s^[1]
Declination	−28° 22′ 12.1″^[1]
Apparent magnitude (V)	5.4 – <22^[2]
Characteristics
Variable type	Nova^[3]
Astrometry

Distance	4200+1200 −900^[4] pc

Other designations
PNV J18205200-2822100, ASASSN-16ma, V5856 Sgr, Nova Sagittarii 2016 No. 4^[5]^[6]
Database references
SIMBAD	data