471 Papagena

471 Papagena is an asteroid that was discovered by German astronomer Max Wolf on 7 June 1901.^[1] Its provisional name was 1901 GN.

471 Papagena

A three-dimensional model of 471 Papagena based on its light curve.
Discovery[1]
Discovered by	Max Wolf
Discovery date	7 June 1901
Designations
MPC designation	(471) Papagena
Pronunciation	German: [paːpaˈɡeːna]
Alternative designations	1901 GN
Minor planet category	Main belt
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	114.84 yr (41944 d)
Aphelion	3.5566 AU (532.06 Gm) (Q)
Perihelion	2.2193 AU (332.00 Gm) (q)
Semi-major axis	2.8879 AU (432.02 Gm) (a)
Eccentricity	0.23154 (e)
Orbital period (sidereal)	4.91 yr (1792.6 d)
Mean anomaly	46.684° (M)
Mean motion	0° 12m 2.988s / day (n)
Inclination	14.976° (i)
Longitude of ascending node	83.999° (Ω)
Argument of perihelion	314.13° (ω)
Physical characteristics
Mean diameter	148.128±3.880 km[1] 124.55 ± 8.77 km[2]
Mass	(3.05±1.73)×1018 kg[2] (3.791 ± 1.364/0.677)×1018 kg[3]
Mean density	3.01 ± 1.82 g/cm3[2] 3.148 ± 1.133/0.563 g/cm3[3][a]
Synodic rotation period	7.113 h (0.2964 d)
Geometric albedo	0.164±0.020[1]
Spectral type	S[1]
Apparent magnitude	9.27 to 13.13
Absolute magnitude (H)	6.72[4] 6.32[1]
Angular diameter	0.147" to 0.041"

Papagena comes to a favorable near-opposition apparent magnitude of better than magnitude 9.8 every five years. On 30 September 2010, it was magnitude 9.68 and it will get brighter every five years until 12 December 2035, when this late-to-be-discovered asteroid will be at magnitude 9.28. It is named for a character in Mozart's opera, The Magic Flute.^{[citation needed]}

Notes

1. Assuming a diameter of 132 ± 4 km.