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Comet

Delavan

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C/1913 Y1 (Delavan)

Orbital elements

Semi-major axis
-7,575.469 AU
Eccentricity
1.0001
Inclination
68.04°
Perihelion
1.104 AU
Longitude of ascending node
60.4°
Argument of periapsis
97.47°
Epoch · J2000
JD 2420432.26884 (perihelion)
Orbit class · HYP
Hyperbolic comet
Earth MOID · 248.4 LD
0.6383 AU

Orbit quality

Observations used
157
Data arc
577 days
First observed
19 December 1913
Last observed
19 July 1915
Residual RMS
0.85 ″
Solution · Otto Matic
15 April 2024

Visual & observation

Absolute magnitude (H)
4.8
Total magnitude M₁ · K₁ 4.3
4.8

Discovery & classification

Also known as 1913 Y1

Named

Sources