CELESTIAL CALCULATOR & EPHEMERIS·NOAA & MEEUS

Astronomy · Riz

A live observatory for the Sun, Moon, daylight, twilight and the sky above Riz.

LIVE CELESTIAL STATE

The Sun is above the horizon

Riz · 11:45 solar noon · 11h 18m of daylight

LOCAL OBSERVATION12:002026-10-23 · Asia/Tehran
SUN
50.4°S · azimuth 185.3°
MOON
Waxing Gibbous99.2% illuminated · -45.0° altitude
LIGHT
11h 18mdaylight · 12h 42m night
RISE 06:06SET 17:24
TWILIGHT
17:48civil dusk · astronomical dusk 18:43
DAWN 05:42DUSK 17:48
CELESTIAL HORIZONAltitude · current observation
N
E
S
W
Sun
Moon
0° horizon45°90° zenith
PLANETARY EPHEMERIS

Solar System · Riz

Topocentric positions for the selected observation time. Coordinates update with the Time Machine.

3 visible above horizon
BODYALTAZRADECDISTANCEMAGRISE / SET
MercuryBELOW HORIZON-17.7°255°15.18h-20.9°0.797 AU0.407:46 / 18:19
VenusBELOW HORIZON-35.1°267°13.77h-18.0°0.273 AU-4.306:13 / 17:02
MarsBELOW HORIZON-42.6°14°9.15h17.9°1.499 AU1.000:19 / 13:45
JupiterBELOW HORIZON-47.2°3°9.72h14.4°5.623 AU-2.001:01 / 14:11
SaturnVISIBLE41.6°116°0.67h1.4°8.490 AU0.316:28 / 04:37
UranusVISIBLE5.4°69°4.20h21.0°18.612 AU5.619:15 / 08:53
NeptuneVISIBLE46.1°124°0.18h-0.4°28.995 AU7.816:02 / 04:04
SOLAR SYSTEM

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.

☿♀♂♃♄♅♆🜨SUN
🜨 Earth
0.995 AUheliocentric distance
ORBIT
1.000 AU
ECCENTRICITY
0.0167
INCLINATION
-0.00°
TRUE ANOMALY
286.6°
FROM EARTH
0.995 AU
ALT / AZ
59.3° / 117°
EARTH · MOON · SUN

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.

ELONGATION143.6°
EARTH
SUN
MOON
MOON PHASEWaxing Gibbous
ILLUMINATION99.2%
MOON DISTANCE382,735.868 km
SUN DISTANCE0.99499 AU
PHASE ANGLE10.2°
CELESTIAL ATLAS

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.

Betelgeuse
Bellatrix
Alnilam
Alnitak
Mintaka
Rigel
RIGHT ASCENSION →
DECLINATION ↑
Orion6 reference stars

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
DEEP SKY ATLAS

Celestial Objects · Riz

Bright Messier objects plotted from their equatorial coordinates and evaluated for the selected time and location.

Andromeda Galaxy
ZENITH
HORIZON
EAST
WEST
M31 · NGC 224Andromeda GalaxyGalaxy · apparent magnitude 3.44
RA
0.71h
DEC
41.27°
ALTITUDE
68.0°
AZIMUTH
312.6°
HOUR ANGLE
21.5°
ANGULAR SIZE
178′ × 63′
ABOVE HORIZON