Comet C/2025 F2 (SWAN) - SWAN25F
Comet C/2025 F2 (SWAN) - SWAN25F is in the constellation of
Andromeda,
at a distance of
Finder Charts
View interactive star map
High precision deep sky finder chart, 60 arcmin wide, showing where Comet C/2025 F2 (SWAN) - SWAN25F is right now. Click on the image to see a more detailed fullscreen tracker view.
Also check out Where is Comet C/2025 F2 (SWAN) - SWAN25F?, a page that provides all the information needed to find Comet C/2025 F2 (SWAN) - SWAN25F in the sky and additional links to sky charts.
Celestial Coordinates
Apparent
J2000
Additional Information
The observed values of Magnitude, Coma Diameter and Tail Length are derived from the most recent observation recorded at the Comet Observers Database. The value of Predicted Magnitude comes from the JPL Horizons ephemerides service and, in the case of comets, might be inaccurate given the highly dynamic and unpredictable behavior of these objects. When available, please refer to the Observed Magnitude value and consider the Predicted 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.
Rise and Set Times
Today's rise, transit and set times of Comet C/2025 F2 (SWAN) - SWAN25F from Greenwich, UK (all times relative to the local timezone Europe/London):
- C/2025 F2 (SWAN) is above the horizon from Greenwich, UK.
- Right now it is placed in the North-West direction at an altitude of 7.10° above the horizon.
- Given its current magnitude, C/2025 F2 (SWAN) is visible with the help of a binocular with a 60-70mm aperture or a small telescope.
- Go to interactive sky chart
If you need to access this information frequently for your observations, you can create a simple customized Quick Access page, so that you can easily bookmark it in your browser favorites or add a shortcut to your mobile phones' home screen.
Distance from Earth
The distance of Comet C/2025 F2 (SWAN) - SWAN25F from Earth is currently
The following chart shows the distance of Comet C/2025 F2 (SWAN) - SWAN25F 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.
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/2025 F2 (SWAN) from Earth is also available as a real time updated value in the Live Position and Data Tracker.
Closest Approach
Between 1 January 2000 and 31 December 2099, the closest approach of Comet C/2025 F2 (SWAN) - SWAN25F to Earth happens on Fri May 2 2025 at a distance of 0.962698 Astronomical Units, or 144,017,526 kilometers:
NOTE: values for the closest approach are computed with a sampling interval of 1 day.
Light Curve
The following chart is the predicted light curve (visual magnitude as a function of time) of Comet C/2025 F2 (SWAN) - SWAN25F, 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.
Orbital Elements
The following table lists the orbital elements of Comet C/2025 F2 (SWAN) - SWAN25F at epoch 20 March 2025 00:00 UTC (JD: 2460755.5). Source: JPL Small-Body Database
| Element | Symbol | Value |
|---|---|---|
| Orbit eccentricity | e | 0.99997363 |
| Orbit inclination | i | 90.37190990° |
| Perihelion distance | q | 0.33342273 AU 49,879,330 km |
| Aphelion distance | Q |
25,286.58475929 AU 3,782,819,244,850 km |
| Semi-major axis | a |
12,643.45909101 AU 1,891,434,562,090 km |
| Orbital period | period |
1,421,697.0551 years 519,274,849.3607 days |
| Date of perihelion transit | Tp | 2025-May-01 03:49:15 2,460,796.6592 JD |
| Argument of perihelion | peri | 153.84988301817° |
| Longitude of the ascending node | node | 329.84365284104° |
| Mean anomaly | M | 359.99997146537° |
| Mean motion | n | 0.00000069°/day |
Orbit Visualization
View Comet C/2025 F2 (SWAN) - SWAN25F in the 3D Solar System Simulator
15 Days Ephemeris
The following table lists the ephemerides of Comet C/2025 F2 (SWAN) - SWAN25F computed for the past and next 7 days, with a 24 hours interval. Apparent celestial coordinates are provided.
| Date | Right AscensionR.A. | DeclinationDec. | MagnitudeMag | Constellation |
|---|---|---|---|---|
| 2025 Apr 14 | 00h 15m 30s | +30° 43’ 36” | 9.37 | Andromeda |
| 2025 Apr 15 | 00h 23m 13s | +31° 26’ 53” | 9.11 | Andromeda |
| 2025 Apr 16 | 00h 31m 29s | +32° 08’ 43” | 8.84 | Andromeda |
| 2025 Apr 17 | 00h 40m 19s | +32° 48’ 28” | 8.57 | Andromeda |
| 2025 Apr 18 | 00h 49m 46s | +33° 25’ 24” | 8.29 | Andromeda |
| 2025 Apr 19 | 00h 59m 51s | +33° 58’ 36” | 8.01 | Andromeda |
| 2025 Apr 20 | 01h 10m 36s | +34° 27’ 02” | 7.72 | Andromeda |
| 2025 Apr 21 | 01h 22m 00s | +34° 49’ 31” | 7.44 | Andromeda |
| 2025 Apr 22 | 01h 34m 03s | +35° 04’ 44” | 7.15 | Triangulum |
| 2025 Apr 23 | 01h 46m 43s | +35° 11’ 15” | 6.87 | Triangulum |
| 2025 Apr 24 | 01h 59m 53s | +35° 07’ 36” | 6.60 | Triangulum |
| 2025 Apr 25 | 02h 13m 29s | +34° 52’ 21” | 6.34 | Triangulum |
| 2025 Apr 26 | 02h 27m 20s | +34° 24’ 15” | 6.11 | Triangulum |
| 2025 Apr 27 | 02h 41m 14s | +33° 42’ 21” | 5.90 | Triangulum |
Additional Resources
- Position and finder charts (see also Where is Comet C/2025 F2 (SWAN) - SWAN25F?)
- Distance from Earth (see also How far is Comet C/2025 F2 (SWAN) - SWAN25F from Earth?)
- When does Comet C/2025 F2 (SWAN) - SWAN25F rise and set?
- Brightness (see also How bright is Comet C/2025 F2 (SWAN) - SWAN25F?)
- Orbital elements. Detailed information about Comet C/2025 F2 (SWAN) - SWAN25F orbital parameters.
- Interactive orbit visualization. 3d visualization showing the orbit of Comet C/2025 F2 (SWAN) - SWAN25F with respect to the major Solar System objects.
- 15 days ephemerides. Table showing celestial coordinates and magnitude of Comet C/2025 F2 (SWAN) - SWAN25F for the past and next 7 days.
- Interactive sky chart. An online planetarium application that shows where to locate Comet C/2025 F2 (SWAN) - SWAN25F in the sky from your location.
- Live position tracker. A high precision sky chart that uses real deep sky imagery to help locate Comet C/2025 F2 (SWAN) - SWAN25F with your telescope or on your astrophotographies.