Comet C/1969 Y1 (Bennett)
Comet C/1969 Y1 (Bennett) is in the constellation of
Triangulum,
at a distance of
Finder Charts
View interactive star map
High precision deep sky finder chart, 60 arcmin wide, showing where Comet C/1969 Y1 (Bennett) is right now. Click on the image to see a more detailed fullscreen tracker view.
Also check out Where is Comet C/1969 Y1 (Bennett)?, a page that provides all the information needed to find Comet C/1969 Y1 (Bennett) 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/1969 Y1 (Bennett) from Greenwich, UK (all times relative to the local timezone Europe/London):
- C/1969 Y1 (Bennett) is below the horizon from Greenwich, UK.
- Given its current magnitude, C/1969 Y1 (Bennett) is visible only through long exposure photography.
- Go to interactive sky chart
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Distance from Earth
The distance of Comet C/1969 Y1 (Bennett) from Earth is currently
The following chart shows the distance of Comet C/1969 Y1 (Bennett) 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/1969 Y1 (Bennett) from Earth is also available as a real time updated value in the Live Position and Data Tracker.
Closest Approach
Between 1 January 2013 and 30 December 2100, the closest approach of Comet C/1969 Y1 (Bennett) to Earth happens on Tue Jan 1 2013 at a distance of 64.293743 Astronomical Units, or 9,618,207,097 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/1969 Y1 (Bennett), 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/1969 Y1 (Bennett) at epoch 11 April 1970 00:00 UTC (JD: 2440688.5). Source: JPL Small-Body Database
| Element | Symbol | Value |
|---|---|---|
| Orbit eccentricity | e | 0.99629328 |
| Orbit inclination | i | 90.03981105° |
| Perihelion distance | q | 0.53762015 AU 80,426,829 km |
| Aphelion distance | Q |
289.54104044 AU 43,314,723,218 km |
| Semi-major axis | a |
145.03933030 AU 21,697,575,023 km |
| Orbital period | period |
1,746.7747 years 638,009.4414 days |
| Date of perihelion transit | Tp | 1970-Mar-20 01:05:24 2,440,665.5454 JD |
| Next perihelion transit | 3717-Jan-09 11:40 3,078,674.9868 JD |
|
| Argument of perihelion | peri | 354.14908861746° |
| Longitude of the ascending node | node | 224.65768316335° |
| Mean anomaly | M | 0.012952234215761° |
| Mean motion | n | 0.00056425°/day |
View Comet C/1969 Y1 (Bennett) in the 3D Solar System Simulator
15 Days Ephemeris
The following table lists the ephemerides of Comet C/1969 Y1 (Bennett) 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 May 20 | 02h 32m 39s | +29° 40’ 12” | 36.61 | Triangulum |
| 2025 May 21 | 02h 32m 42s | +29° 40’ 28” | 36.61 | Triangulum |
| 2025 May 22 | 02h 32m 45s | +29° 40’ 45” | 36.61 | Triangulum |
| 2025 May 23 | 02h 32m 49s | +29° 41’ 00” | 36.61 | Triangulum |
| 2025 May 24 | 02h 32m 53s | +29° 41’ 17” | 36.61 | Triangulum |
| 2025 May 25 | 02h 32m 56s | +29° 41’ 33” | 36.61 | Triangulum |
| 2025 May 26 | 02h 32m 59s | +29° 41’ 50” | 36.61 | Triangulum |
| 2025 May 27 | 02h 33m 02s | +29° 42’ 07” | 36.61 | Triangulum |
| 2025 May 28 | 02h 33m 05s | +29° 42’ 23” | 36.61 | Triangulum |
| 2025 May 29 | 02h 33m 08s | +29° 42’ 40” | 36.61 | Triangulum |
| 2025 May 30 | 02h 33m 11s | +29° 42’ 57” | 36.61 | Triangulum |
| 2025 May 31 | 02h 33m 14s | +29° 43’ 14” | 36.61 | Triangulum |
| 2025 Jun 01 | 02h 33m 16s | +29° 43’ 31” | 36.61 | Triangulum |
| 2025 Jun 02 | 02h 33m 19s | +29° 43’ 48” | 36.61 | Triangulum |
Additional Resources on TheSkyLive
- Comet C/1969 Y1 (Bennett): Complete reference information on TheSkyLive.com.
- Where is Comet C/1969 Y1 (Bennett)?: Key information on locating Comet C/1969 Y1 (Bennett) in the sky.
- Distance from Earth: Find out how far Comet C/1969 Y1 (Bennett) is from Earth right now.
- How Bright is Comet C/1969 Y1 (Bennett)?: Current visual brightness (magnitude) and apparent size.
- Rise and Set Times: Comet C/1969 Y1 (Bennett)'s rise and set times from your location.
- Interactive Sky Map: planetarium-style interactive visualization of Comet C/1969 Y1 (Bennett)'s position in the sky.
- Live Position Tracker: high precision position tracker with deep space imagery.
- Ephemeris: 15 days Comet C/1969 Y1 (Bennett)'s computed ephemeris.
- Orbital elements: information about Comet C/1969 Y1 (Bennett) orbital parameters.
- Orbit Visualization. 3d interactive visualization showing the orbit of Comet C/1969 Y1 (Bennett) with respect to the major Solar System objects.