OBSERVATORY ALMANAC · NOCTURNAL DISPATCH

Tonight under the Sky

20.78°N, 101.40°WAmerica/Mexico_City

Daylight+44.1°

10:17:13

Fri, Oct 23, 2026

PHOTOMETRIC TWILIGHT SPECTRUM10h 0m of true darkness · 12h 29m total night

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

TRUE DARK SKY WINDOW

Sunset18:15

Civil Dusk18:38

Nautical19:03

Full Dark19:29

Nadir00:29

Dark Ends05:29

Nautical05:55

Civil Dawn06:21

Sunrise06:44

LIVE REAL-TIME OBSERVATION

SunsetSunrise

LOCAL SKY PLANISPHERE · STEREOGRAPHIC PROJECTION

All-Sky Nocturnal Dome

Click any body to inspect telemetry

LUNAR EPHEMERISWaxing Gibbous

ILLUMINATION92%

ALTITUDE-67.8°

DISTANCE380,359 km

Moonrise16:32

Moonset04:14

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	40.5°	139°	Libra	06:49	12:22	17:55	Naked Eye
Jupiter♃	Optimal Visibility	-2.0	61.5°	262°	Leo	01:56	08:20	14:44	Naked Eye
Saturn♄	Below Horizon	0.3	-63.1°	325°	Pisces	17:11	23:19	05:23	Naked Eye
Mars♂	Optimal Visibility	1.0	54.3°	272°	Cancer	01:15	07:46	14:16	Naked Eye
Mercury☿	Visible Low	0.4	23.8°	126°	Libra	08:18	13:47	19:15	Binoculars
Uranus♅	Below Horizon	5.6	-10.9°	298°	Taurus	20:11	02:50	09:25	Binoculars
Neptune♆	Below Horizon	7.8	-68.1°	339°	Pisces	16:44	22:49	04:50	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

RISES16:32

BEST TIME22:48S · 74° high

SETS04:14

Reaches about 74° above the horizon at its highest point.Waxing Gibbous (92% illuminated). Minimal Lunar Glare.

JupiterNaked Eye · High in the sky

RISES01:56

BEST TIME08:20S · 84° high

SETS14:44

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

RISES17:11

BEST TIME23:19S · 71° high

SETS05:23

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

RISES06:49

BEST TIME12:22S · 51° high

SETS17:55

Reaches about 51° above the horizon at its highest point.Brilliant dazzling beacon; visible crescent phase in small telescope.

MarsNaked Eye · High in the sky

RISES01:15

BEST TIME07:46S · 87° high

SETS14:16

Reaches about 87° 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.