Astronomy · Marathon
A live observatory for the Sun, Moon, daylight, twilight and the sky above Marathon.
The Sun is above the horizon
Marathon · 13:29 solar noon · 10h 22m of daylight
Solar System · Marathon
Topocentric positions for the selected observation time. Coordinates update with the Time Machine.
| BODY | ALT | AZ | RA | DEC | DISTANCE | MAG | RISE / SET |
|---|---|---|---|---|---|---|---|
| MercuryVISIBLE | 14.8° | 149° | 15.18h | -20.9° | 0.796 AU | 0.4 | 10:23 / 19:07 |
| VenusVISIBLE | 22.6° | 169° | 13.77h | -18.0° | 0.273 AU | -4.3 | 08:39 / 17:59 |
| MarsVISIBLE | 33.9° | 258° | 9.15h | 17.9° | 1.499 AU | 1.0 | 01:15 / 16:16 |
| JupiterVISIBLE | 36.7° | 248° | 9.72h | 14.4° | 5.623 AU | -2.0 | 02:06 / 16:31 |
| SaturnBELOW HORIZON | -39.2° | 7° | 0.67h | 1.4° | 8.490 AU | 0.3 | 18:06 / 06:24 |
| UranusBELOW HORIZON | -8.0° | 316° | 4.20h | 21.0° | 18.611 AU | 5.6 | 20:00 / 11:33 |
| NeptuneBELOW HORIZON | -40.0° | 17° | 0.18h | -0.4° | 28.995 AU | 7.8 | 17:45 / 05:46 |
Planetary Orbits · 2026-10-23 12:00
Heliocentric orbital geometry for the selected instant. Distances use a logarithmic visual scale so the inner planets remain readable.
- ORBIT
- 1.000 AU
- ECCENTRICITY
- 0.0167
- INCLINATION
- -0.00°
- TRUE ANOMALY
- 286.9°
- FROM EARTH
- 0.995 AU
- ALT / AZ
- 46.1° / 139°
Three-Body Relationship · 2026-10-23 12:00
Geocentric directions and lunar phase at the selected instant. The geometry is intentionally schematic, not to scale.
Constellation Map · Equatorial Coordinates
Real right ascension and declination for selected reference stars. This map is a chart, so the denser astronomical treatment stays here rather than in Living Sky.
Coordinates are plotted in an equatorial frame, independent of local horizon orientation.
- Betelgeuse
- 5.92h · 7.4° · mag 0.5
- Bellatrix
- 5.42h · 6.3° · mag 1.6
- Alnilam
- 5.60h · -1.2° · mag 1.7
- Alnitak
- 5.68h · -1.9° · mag 1.7
- Mintaka
- 5.53h · -0.3° · mag 2.2
- Rigel
- 5.24h · -8.2° · mag 0.1
Celestial Objects · Marathon
Bright Messier objects plotted from their equatorial coordinates and evaluated for the selected time and location.
- RA
- 0.71h
- DEC
- 41.27°
- ALTITUDE
- 81.8°
- AZIMUTH
- 153.5°
- HOUR ANGLE
- -4.9°
- ANGULAR SIZE
- 178′ × 63′