OBSERVATORY ALMANAC · NOCTURNAL DISPATCH

Tonight under the Sky

21.88°N, 102.30°WAmerica/Mexico_City

Daylight+56.4°

12:47:10

Fri, Oct 23, 2026

PHOTOMETRIC TWILIGHT SPECTRUM10h 1m of true darkness · 12h 31m total night

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

TRUE DARK SKY WINDOW

Sunset18:18

Civil Dusk18:40

Nautical19:06

Full Dark19:32

Nadir00:33

Dark Ends05:34

Nautical06:00

Civil Dawn06:26

Sunrise06:49

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-49.9°

DISTANCE379,798 km

Moonrise16:36

Moonset04:17

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	49.8°	188°	Libra	06:55	12:26	17:57	Naked Eye
Jupiter♃	Visible Low	-2.0	27.4°	275°	Leo	01:58	08:24	14:49	Naked Eye
Saturn♄	Below Horizon	0.3	-58.4°	45°	Pisces	17:15	23:18	05:26	Naked Eye
Mars♂	Visible Low	1.0	20.6°	282°	Cancer	01:17	07:49	14:21	Naked Eye
Mercury☿	Optimal Visibility	0.4	44.4°	159°	Libra	08:24	13:50	19:17	Binoculars
Uranus♅	Below Horizon	5.6	-37.0°	322°	Taurus	20:13	02:54	09:31	Binoculars
Neptune♆	Below Horizon	7.8	-54.2°	57°	Pisces	16:48	22:49	04:54	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

RISES16:36

BEST TIME22:52S · 73° high

SETS04:17

Reaches about 73° above the horizon at its highest point.Waxing Gibbous (93% illuminated). Minimal Lunar Glare.

JupiterNaked Eye · High in the sky

RISES01:58

BEST TIME08:24S · 83° high

SETS14:49

Reaches about 83° above the horizon at its highest point.Bright golden disc; four Galilean moons easily seen in 7x50 binoculars.

SaturnNaked Eye · High in the sky

RISES17:15

BEST TIME23:18S · 70° high

SETS05:26

Reaches about 70° above the horizon at its highest point.Pale amber jewel; majestic ring system visible in any 60mm telescope.

VenusNaked Eye · High in the sky

RISES06:55

BEST TIME12:26S · 50° high

SETS17:57

Reaches about 50° above the horizon at its highest point.Brilliant dazzling beacon; visible crescent phase in small telescope.

MarsNaked Eye · High in the sky

RISES01:17

BEST TIME07:49S · 86° high

SETS14:21

Reaches about 86° 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.