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Comet C/2018 F1 (Grauer)

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Comet C/2018 F1 (Grauer) Position

Comet C/2018 F1 (Grauer) is currently in the constellation of Vulpecula. The current Right Ascension is 20h 01m 23s and the Declination is +25° 29’ 14”.

20h 01m 23s
+25° 29’ 14”

Simplified sky chart showing where Comet C/2018 F1 (Grauer) is right now in the sky with respect to the brightest stars and constellations (see fuillscreen Online Planetarium)

Map showing Comet C/2018 F1 (Grauer) in Vulpecula on August, 22 2019
Field of view: 60x30 degrees
View fullscreen
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Hihgher precision deep sky finder chart showing where Comet C/2018 F1 (Grauer) is right now (view fullscreen)

C/2018 F1 (Grauer)
RA: 20h 01m 23s
Dec: +25° 29’ 14”
Deep sky finder chart for Comet C/2018 F1 (Grauer)
Field of view: 60x40 arcmins
View fullscreen

Also check out Where is Comet C/2018 F1 (Grauer)?, a page that provides all the information needed to find Comet C/2018 F1 (Grauer) in the sky and additional links to sky charts.

Comet C/2018 F1 (Grauer) Distance

The distance of Comet C/2018 F1 (Grauer) from Earth is currently 463,295,386 kilometers, equivalent to 3.096938 Astronomical Units. Light takes 25 minutes and 45.3871 seconds to travel from Comet C/2018 F1 (Grauer) and arrive to us.

25 minutes and 45.3871 seconds

The following chart shows the distance of Comet C/2018 F1 (Grauer) from Earth as a function of time. In the chart the distance data is measured in Astronomical Units and sampled with an interval of 1 day.

Distance of Comet C/2018 F1 (Grauer) from Earth between January 2013 and December 2100

The value of the reported distance might be somewhat inaccurate around the times of closest approach for objects passing extremely close to Earth. The value of the distance of C/2018 F1 (Grauer) from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest approach of Comet C/2018 F1 (Grauer) to Earth

Between January 2013 and December 2100 the closest approach of Comet C/2018 F1 (Grauer) to Earth happens on Sun Apr 15 2018 at a distance of 2.88091169 Astronomical Units, or 430,978,256 kilometers:

Sun Apr 15 2018

NOTE: values for the closest approach are computed with a sampling interval of 1 day.

Comet C/2018 F1 (Grauer) brightness

The current visual magnitude of Comet C/2018 F1 (Grauer) is 19.11.


The observed magnitude and coma diameter values are derived from the Comet Observers Database by averaging the values reported in recent observations (more recent than 4 days), when available. The Estimated Magnitude comes from the JPL Horizons ephemerides service and might be inaccurate given the highly dynamic and unpredictable behvior of comets. When available, please refer to the Observed Magnitude value and consider the Estimated Magnitude as a directional indication. We acknowledge with thanks the comet observations from the COBS Comet Observation Database contributed by observers worldwide and used in this table to report recent comet observations.

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet C/2018 F1 (Grauer), according to the most recent ephemerides data. Magnitude data is sampled with a 2 days interval and there might be inaccuracies for objects changing brightness very rapidly during the course of a few days. For comets there could be large discrepancies between the observed and predicted brightness because of their highly dynamic behaviour.

Predicted magnitude of Comet C/2018 F1 (Grauer) between January 2013 and December 2100

Comet C/2018 F1 (Grauer) rise and set times

Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's Comet C/2018 F1 (Grauer) rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 64.6°
Max altitude: 63.8°
Azimuth: 295.4°
Comet C/2018 F1 (Grauer) is above the horizon from Greenwich, United Kingdom

The rise and set times are defined as the time at which the upper limb of Comet C/2018 F1 (Grauer) touches the horizon, consideting the effect of the atmospheric refraction. As the atmoshpere conditions cannot be modeled precisely the times reported here should be considered correct with an approximation of few minutes.

Comet C/2018 F1 (Grauer) Orbital Elements

The following table lists the orbital elements of Comet C/2018 F1 (Grauer) at epoch 04 March 2019 00:00 UTC (JD: 2458547.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.99071809
Orbit inclination i 46.07060682°
Perihelion distance q 2.99304813 AU
447,753,628 km
Aphelion distance Q 641.92749842 AU
96,030,987,101 km
Semi-major axis a 322.46027328 AU
48,239,370,364 km
Orbital period period 5,790.5900 years
2,115,011.5989 days
Date of perihelion transit Tp 2018-Dec-14 01:57:19
2,458,466.5815 JD
Next perihelion transit 7809-Aug-28 16:19
4,573,478.1804 JD
Argument of perihelion peri 71.628355849458°
Longitude of the ascending node node 177.28591687726°
Mean anomaly M 0.01377329071582°
Mean motion n 0.00017021°/day

Visualization of Comet C/2018 F1 (Grauer) Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Comet C/2018 F1 (Grauer) with respect of the Sun and the orbits of the major planets. The position of Comet C/2018 F1 (Grauer) and the planets along their orbits in this diagram accurately represents the current configuration of the objects in the Solar System. This is an experimental feature and it requires a WebGL enabled browser. Please provide us feedback!

Orbit Diagram of Comet C/2018 F1 (Grauer)
View Comet C/2018 F1 (Grauer) in the 3D Solar System Simulator

Comet C/2018 F1 (Grauer) 15 Days Ephemeris

The following table lists the ephemerides of Comet C/2018 F1 (Grauer) computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Comet C/2018 F1 (Grauer) in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2019 Aug 15 20h 03m 28s +26° 55’ 36” 19.03 Vulpecula
2019 Aug 16 20h 03m 07s +26° 43’ 49” 19.04 Vulpecula
2019 Aug 17 20h 02m 48s +26° 31’ 54” 19.05 Vulpecula
2019 Aug 18 20h 02m 30s +26° 19’ 50” 19.06 Vulpecula
2019 Aug 19 20h 02m 12s +26° 07’ 36” 19.07 Vulpecula
2019 Aug 20 20h 01m 56s +25° 55’ 17” 19.09 Vulpecula
2019 Aug 21 20h 01m 41s +25° 42’ 50” 19.10 Vulpecula
2019 Aug 22 20h 01m 24s +25° 30’ 15” 19.11 Vulpecula
2019 Aug 23 20h 01m 10s +25° 17’ 35” 19.12 Vulpecula
2019 Aug 24 20h 00m 56s +25° 04’ 46” 19.13 Vulpecula
2019 Aug 25 20h 00m 43s +24° 51’ 53” 19.15 Vulpecula
2019 Aug 26 20h 00m 32s +24° 38’ 54” 19.16 Vulpecula
2019 Aug 27 20h 00m 20s +24° 25’ 50” 19.17 Vulpecula
2019 Aug 28 20h 00m 11s +24° 12’ 41” 19.18 Vulpecula