OBSERVATORY ALMANAC · NOCTURNAL DISPATCH

Tonight under the Sky

19.96°N, 101.23°WAmerica/Mexico_City

Daylight+56.8°

13:10:29

Fri, Oct 23, 2026

PHOTOMETRIC TWILIGHT SPECTRUM9h 59m of true darkness · 12h 27m total night

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

TRUE DARK SKY WINDOW

Sunset18:15

Civil Dusk18:37

Nautical19:03

Full Dark19:29

Nadir00:29

Dark Ends05:28

Nautical05:54

Civil Dawn06:20

Sunrise06:42

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-45.2°

DISTANCE379,711 km

Moonrise16:32

Moonset04:13

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	50.2°	198°	Libra	06:48	12:21	17:56	Naked Eye
Jupiter♃	Visible Low	-2.0	20.8°	278°	Leo	01:56	08:19	14:42	Naked Eye
Saturn♄	Below Horizon	0.3	-54.6°	56°	Pisces	17:11	23:14	05:22	Naked Eye
Mars♂	Visible Low	1.0	13.9°	284°	Cancer	01:16	07:45	14:14	Naked Eye
Mercury☿	Optimal Visibility	0.4	48.2°	167°	Libra	08:16	13:46	19:16	Binoculars
Uranus♅	Below Horizon	5.6	-42.2°	328°	Taurus	20:12	02:49	09:23	Binoculars
Neptune♆	Below Horizon	7.8	-49.4°	65°	Pisces	16:44	22:45	04:49	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 · 75° high

SETS04:13

Reaches about 75° above the horizon at its highest point.Waxing Gibbous (93% illuminated). Minimal Lunar Glare.

JupiterNaked Eye · High in the sky

RISES01:56

BEST TIME08:19S · 84° high

SETS14:42

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 TIME23:14S · 71° high

SETS05:22

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

RISES06:48

BEST TIME12:21S · 52° high

SETS17:56

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

RISES01:16

BEST TIME07:45S · 88° high

SETS14:14

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.