OBSERVATORY ALMANAC · NOCTURNAL DISPATCH

Tonight under the Sky

20.23°N, 87.52°WAmerica/Mexico_City

Daylight+58.1°

11:26:59

Fri, Oct 23, 2026

PHOTOMETRIC TWILIGHT SPECTRUM10h 0m of true darkness · 12h 28m total night

DaylightCivil (−6°)Nautical (−12°)Astro (−18°)Dark Sky (<−18°)

TRUE DARK SKY WINDOW

Sunset17:20

Civil Dusk17:42

Nautical18:08

Full Dark18:34

Nadir23:34

Dark Ends04:34

Nautical04:59

Civil Dawn05:25

Sunrise05:48

LIVE REAL-TIME OBSERVATION

SunsetSunrise

LOCAL SKY PLANISPHERE · STEREOGRAPHIC PROJECTION

All-Sky Nocturnal Dome

Click any body to inspect telemetry

LUNAR EPHEMERISWaxing Gibbous

ILLUMINATION93%

ALTITUDE-54.6°

DISTANCE380,098 km

Moonrise15:36

Moonset03:16

HorizonBelow

LUNAR INTERFERENCE INDEX0% · Minimal Lunar Glare

Sky background remains dark; faint nebulae and distant galaxies are distinct.

ATMOSPHERIC SEEING & CLOUD PROFILETonight's Index

42/100

Fair Stargazing

Partial haze or lunar wash. Bright clusters, double stars, and prominent planets remain well visible.

CLOUD COVER15%

HUMIDITY50%

VISIBILITY18 km

DEW POINT10.8°C

PLANETARY EPHEMERIS & ALMANAC

Visible Planets Tonight

All times calibrated to America/Mexico_City

PLANET	STATUS	MAGNITUDE	ALTITUDE	AZIMUTH	CONSTELLATION	RISE	TRANSIT	SET	EQUIPMENT
Venus♀	Optimal Visibility	-4.3	51.8°	180°	Libra	05:53	11:27	17:01	Naked Eye
Jupiter♃	Optimal Visibility	-2.0	32.2°	275°	Leo	01:01	07:25	13:48	Naked Eye
Saturn♄	Below Horizon	0.3	-62.9°	38°	Pisces	16:16	22:19	04:27	Naked Eye
Mars♂	Visible Low	1.0	25.1°	281°	Cancer	00:21	06:50	13:20	Naked Eye
Mercury☿	Optimal Visibility	0.4	43.9°	152°	Libra	07:22	12:51	18:21	Binoculars
Uranus♅	Below Horizon	5.6	-35.0°	317°	Taurus	19:17	01:55	08:29	Binoculars
Neptune♆	Below Horizon	7.8	-59.2°	52°	Pisces	15:49	21:50	03:55	Telescope

TONIGHT'S VIEWING SCHEDULE

When & Where to Look Tonight

A simple guide to when each object is above your horizon. No astronomy chart reading required.

BEST TIMEHighest in your sky

The MoonNaked Eye · High in the sky

RISES15:36

BEST TIME21:51S · 74° high

SETS03:16

Reaches about 74° above the horizon at its highest point.Waxing Gibbous (93% illuminated). Minimal Lunar Glare.

JupiterNaked Eye · High in the sky

RISES01:01

BEST TIME07:25S · 84° high

SETS13:48

Reaches about 84° above the horizon at its highest point.Bright golden disc; four Galilean moons easily seen in 7x50 binoculars.

SaturnNaked Eye · High in the sky

RISES16:16

BEST TIME22:19S · 71° high

SETS04:27

Reaches about 71° above the horizon at its highest point.Pale amber jewel; majestic ring system visible in any 60mm telescope.

VenusNaked Eye · High in the sky

RISES05:53

BEST TIME11:27S · 52° high

SETS17:01

Reaches about 52° above the horizon at its highest point.Brilliant dazzling beacon; visible crescent phase in small telescope.

MarsNaked Eye · High in the sky

RISES00:21

BEST TIME06:50S · 88° high

SETS13:20

Reaches about 88° above the horizon at its highest point.Distinctive crimson hue; polar ice cap discernible near opposition.

OBSERVING LOG & TARGET LIST

Tonight's Prime Deep-Sky Targets

0 / 6 targets logged tonight

M31 / NGC 224 · Andromeda

Andromeda Galaxy

Spiral Galaxy (2.5M ly)

Our galactic neighbor; visible as a ghostly oval smudge with dense radiant stellar core.

M45 · Taurus

The Pleiades (Seven Sisters)

Open Star Cluster

Breathtaking blue diamond cluster enshrouded in delicate interstellar reflection nebulosity.

M42 / NGC 1976 · Orion

Great Orion Nebula

Diffuse Emission Nebula

Star nursery harboring the brilliant Trapezium cluster with sprawling bat-wing filaments.

NGC 869 & NGC 884 · Perseus

The Double Cluster

Twin Open Clusters

Pair of spectacular shimmering jewel-boxes bursting with ruby supergiant stars.

M13 / NGC 6205 · Hercules

Great Globular Cluster in Hercules

Globular Cluster (300k stars)

Massive beehive of ancient stars packed tightly together into a blazing central ball.

M57 / NGC 6720 · Lyra

The Ring Nebula

Planetary Nebula

Delicate glowing smoke-ring left behind by a dying star 2,500 light-years away.