C/2015 V4 (PANSTARRS) |
ephemeris |
date |
magn |
radius |
delta |
ra |
dec |
elong |
phase |
PA |
Perihelion | 27 Aug 2016 | 19.8 | 5.456 AU | 6.214 AU | 09h09m | -23°28' | 38.2° | 6.6° | 212° |
Nearest approach | 1 Mar 2017 | 19.3 | 5.574 AU | 4.740 AU | 09h54m | -25°41' | 144.3° | 6.0° | 23° |
Today | 9 May 2024 | 26.0 | 14.803 AU | 14.240 AU | 16h21m | +37°32' | 122.2° | 3.3° | 201° |
C/2015 V4 (PANSTARRS)- 2024-05-09
astro.vanbuitenen.nl
The interactive orbit chart above shows the comet's path through the solar system and its position at the given date.
Green and blue lines are shown perpendicular to the ecliptic plane: Green if the path is above the ecliptic plane, blue if it is below.
(Left-click and drag to rotate the view; Right-click and drag to move the view; Use scroll wheel to zoom in our out.)
The orbital elements of C/2015 V4 (PANSTARRS) are:
e (Eccentricity) : 0.7043240
q (Perihelion distance) : 5.4561580
i (Inclination) : 60.79850
Ω (Longitude of ascending node) : 179.95140
ω (Argument of perihelion) : 306.90560
L (Longitude of perihelion) : 146.94098
B (Latitude of perihelion) : -44.26684
T (Time of perihelion passage) : 2457628.43080
P (Orbital period in years) : 79.27
Epoch : 2021 Sep 25
Reference : MPC104791
Classification(s): : Nearly isotropic; Returning (a < 10000 AU); Halley type (P < 200 years)
The light curve chart below shows the estimated development of the comet's magnitude. Blue and black dots are visual and photometric CCD observations respectively from COBS or the MPC.
The light curve is based on the absolute magnitude and slope parameter as calculated from an MPEC, or the latest values provided by the minor planet center. (8.50 + 5 log[∆] + 10.00 log[r]).
The all-sky chart below shows the path of the comet over the same period as the light curve. The comet's current position is marked yellow.
The following chart shows the short-term path of the comet in a field of view that is optimized for (~10x50) binoculars and finderscopes.
A more printer-friendly version of the same chart can be found further down this page as well.
The following chart shows the current location of the comet in a smaller, upside-down telescopic field of view.
A printable version of the short-term path of the comet in a field of view that is optimized for (~10x50) binoculars and finderscopes.
Ephemerides:
Date Time RA (2000) DEC (2000) delta radius elong phase PA magn
2024-05-09 00:00 UT 16 21 37.8 +37 31 53 14.238 14.801 122.2 3.3 202 26.0
2024-05-09 12:59 UT 16 21 29.5 +37 32 47 14.240 14.803 122.2 3.3 201 26.0
2024-05-10 00:00 UT 16 21 22.5 +37 33 32 14.241 14.805 122.2 3.3 201 26.0
2024-05-11 00:00 UT 16 21 07.1 +37 35 07 14.244 14.808 122.2 3.3 199 26.0
2024-05-12 00:00 UT 16 20 51.6 +37 36 39 14.248 14.811 122.2 3.3 198 26.0
2024-05-13 00:00 UT 16 20 36.0 +37 38 07 14.251 14.815 122.2 3.3 197 26.0
2024-05-14 00:00 UT 16 20 20.4 +37 39 32 14.255 14.818 122.2 3.3 196 26.0
2024-05-15 00:00 UT 16 20 04.6 +37 40 53 14.258 14.821 122.1 3.3 195 26.0
2024-05-16 00:00 UT 16 19 48.8 +37 42 10 14.262 14.825 122.1 3.3 193 26.0
2024-05-17 00:00 UT 16 19 32.9 +37 43 24 14.267 14.828 122.0 3.3 192 26.0
2024-05-18 00:00 UT 16 19 16.9 +37 44 35 14.271 14.831 122.0 3.3 191 26.0
2024-05-19 00:00 UT 16 19 00.9 +37 45 41 14.275 14.835 121.9 3.3 190 26.0
Terminology:
delta: distance between comet and earth in AU
radius: distance between comet and sun in AU
magn: magnitude (brightness) estimate
ra: right ascension in hours (24h = 360deg)
dec: declination in degrees
elong: elongation in degrees (angle sun-earth-comet)
phase: phase angle in degrees (angle sun-comet-earth)
AU: Astronomical Unit (mean distance between earth and sun: 149597870.7 km
Orbital elements usually provided by the MPC (Minor Planet Center).
Observations contributed by observers worldwide, via COBS (Comet Observation Database) or the MPC (Minor Planet Center)
Calculations by a modified version of AAPlus, a C# implementation of the AA+ project by PJ Naughter from the algorithms presented in the book "Astronomical Algorithms" by Jean Meeus.
NGC2000 dso catalog and star labels from VizieR as provided by the Strasbourg astronomical Data Center.
Tycho2 catalog from the ESO archive.