C/1652 Y1 Explained

C/1652 Y1
Discoverer:	Diego Rodríguez
Designations:	1652
Perihelion:	0.8475 AU
Eccentricity:	1.0
Inclination:	79.461°
Last P:	November 13, 1652

C/1652 Y1 was a naked-eye comet observed, among others, by Jan van Riebeeck. First spotted on December 14, 1652, in Mexico City, by Novohispano friar Diego Rodríguez,^[1] and next sighted on December 16, 1652, by Dutch observers at Pernambuco (Brazil).^[2]

the comet was about 280 AU from the Sun (very approximate due to poorly determined orbit).^{[3] [4]}

Notes and References

1. Priani-Saisó, González-Lópezlira & Loinard 2024, "Observations of the Comet of 1652 (C/1652 Y1) from New Spain: between Empirical Measurements and Theory," Journal of Astronomical History and Heritage, Volume 27, Issue 1: 73 - 90.
2. Frederik Muller, De Nederlandsche Geschiedenis in Platen. Beredeneerde Beschrijving van Nederlandsche Historieplaten. Amsterdam: 1863; nr. 2059.
3. NASA. JPL Small-body database browser plot and approximate distance. (needs Java)
4. NASA. JPL HORIZONS current ephemeris more accurate position, no plot.