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public  Genoa, Italy Genoa, Italy  ⓘ
TimezoneEurope/Rome
Sunrise: 5:42 
Transit: 13:23 
Sunset: 21:04
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Dwarf Planets and Asteroids » 

Asteroid 3122 Florence (1981 ET3)

Above the horizon.  Rise: 9:14 | Tran: 16:51 | Set: 0:27
Alt: 25.98°   Az: 82.29°   Direction: East

Asteroid 3122 Florence (1981 ET3) is in the constellation of Cancer, at a distance of 400,844,997.0 kilometers from Earth. The current Right Ascension is 08h 27m 37s and the Declination is +23° 07’ 39” (apparent coordinates). The magnitude of Asteroid 3122 Florence (1981 ET3) is 18.88.

Finder Charts

Map showing Asteroid 3122 Florence (1981 ET3) in Cancer on June, 06 2025. Field of view: 50x30 degrees
View interactive star map
Sky map showing Asteroid 3122 Florence (1981 ET3) in Cancer on June, 06 2025. Field of view: 15x9 degrees. View in interactive sky chart

High precision deep sky finder chart, 60 arcmin wide, showing where Asteroid 3122 Florence (1981 ET3) is right now. Click on the image to see a more detailed fullscreen tracker view.

3122 Florence (1981 ET3)
RA: 08h 26m 07s
Dec: +23° 12’ 43”
Deep sky finder chart for Asteroid 3122 Florence (1981 ET3). Field of view: 60x40 arcmins. View in deep sky object tracker

Also check out Where is Asteroid 3122 Florence (1981 ET3)?, a page that provides all the information needed to find Asteroid 3122 Florence (1981 ET3) in the sky and additional links to sky charts.

Celestial Coordinates

Apparent

08h 27m 37s
+23° 07’ 39”
18h 57m 30s
03h 25m 08s

J2000

08h 26m 07s
+23° 12’ 43”

Additional Information

Cancer
18.88

Rise and Set Times

Today's rise, transit and set times of Asteroid 3122 Florence (1981 ET3) from Genoa, Italy (all times relative to the local timezone Europe/Rome):

Azimuth: 66.9°
Max altitude: 68.7°
Azimuth: 293.0°
  • 3122 Florence (1981 ET3) is above the horizon from Genoa, Italy.
  • Right now it is placed in the East direction at an altitude of 25.98° above the horizon.
  • Given its current magnitude, 3122 Florence (1981 ET3) is visible only through long exposure photography.
  • 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 Asteroid 3122 Florence (1981 ET3) from Earth is currently 400,844,997.0 kilometers, equivalent to 2.6794833050 Astronomical Units. Light takes 22m 17.075s to travel from Asteroid 3122 Florence (1981 ET3) and arrive to us.

400,844,997.0
2.6794833050
22m 17.075s

The following chart shows the distance of Asteroid 3122 Florence (1981 ET3) 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.

Chart of the distance of Asteroid 3122 Florence (1981 ET3) from Earth in Astronomical Units (au)

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 3122 Florence (1981 ET3) 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 Asteroid 3122 Florence (1981 ET3) to Earth happens on Sat Sep 2 2017 at a distance of 0.047399 Astronomical Units, or 7,090,844 kilometers:

Sat Sep 2 2017
7,090,844
0.047399

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 Asteroid 3122 Florence (1981 ET3), 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.

Chart of the magnitude of Asteroid 3122 Florence (1981 ET3) as a function of time

Orbital Elements

The following table lists the orbital elements of Asteroid 3122 Florence (1981 ET3) at epoch 16 October 2024 00:00 UTC (JD: 2460600.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.42310672
Orbit inclination i 22.13906707°
Perihelion distance q 1.02056900 AU
152,674,949 km
Aphelion distance Q 2.51758629 AU
376,625,549 km
Semi-major axis a 1.76907764 AU
264,650,249 km
Orbital period period 2.3530 years
859.4463 days
Date of perihelion transit Tp 2024-Oct-15 09:24:30
2,460,598.8920 JD
Next perihelion transit 2027-Feb-21 20:07
2,461,458.3384 JD
Argument of perihelion peri 27.901399914009°
Longitude of the ascending node node 336.04944811459°
Mean anomaly M 0.67354214145658°
Mean motion n 0.41887432°/day
2h1>Orbit Visualization
Orbit Diagram of Asteroid 3122 Florence (1981 ET3)
View Asteroid 3122 Florence (1981 ET3) in the 3D Solar System Simulator

15 Days Ephemeris

The following table lists the ephemerides of Asteroid 3122 Florence (1981 ET3) 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 30 08h 13m 53s +24° 34’ 00” 18.82 Cancer
2025 May 31 08h 15m 46s +24° 22’ 21” 18.83 Cancer
2025 Jun 01 08h 17m 38s +24° 10’ 43” 18.84 Cancer
2025 Jun 02 08h 19m 29s +23° 59’ 05” 18.85 Cancer
2025 Jun 03 08h 21m 20s +23° 47’ 25” 18.86 Cancer
2025 Jun 04 08h 23m 11s +23° 35’ 46” 18.87 Cancer
2025 Jun 05 08h 25m 02s +23° 24’ 07” 18.87 Cancer
2025 Jun 06 08h 26m 52s +23° 12’ 25” 18.88 Cancer
2025 Jun 07 08h 28m 41s +23° 00’ 45” 18.89 Cancer
2025 Jun 08 08h 30m 30s +22° 49’ 04” 18.90 Cancer
2025 Jun 09 08h 32m 19s +22° 37’ 22” 18.91 Cancer
2025 Jun 10 08h 34m 08s +22° 25’ 39” 18.91 Cancer
2025 Jun 11 08h 35m 57s +22° 13’ 57” 18.92 Cancer
2025 Jun 12 08h 37m 45s +22° 02’ 13” 18.93 Cancer

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