OBSERVATORY ALMANAC · NOCTURNAL DISPATCH

Tonight under the Sky

17.96°N, 97.02°WAmerica/Mexico_City

Daylight+56.3°

13:18:20

Fri, Oct 23, 2026

PHOTOMETRIC TWILIGHT SPECTRUM9h 57m of true darkness · 12h 24m total night

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

TRUE DARK SKY WINDOW

Sunset18:00

Civil Dusk18:22

Nautical18:48

Full Dark19:13

Nadir00:12

Dark Ends05:11

Nautical05:36

Civil Dawn06:02

Sunrise06:24

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-40.6°

DISTANCE379,682 km

Moonrise16:15

Moonset03:56

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°	208°	Libra	06:28	12:05	17:42	Naked Eye
Jupiter♃	Visible Low	-2.0	14.7°	281°	Leo	01:42	08:03	14:23	Naked Eye
Saturn♄	Below Horizon	0.3	-50.5°	64°	Pisces	16:54	22:57	05:05	Naked Eye
Mars♂	Rising / Setting	1.0	7.8°	286°	Cancer	01:01	07:28	13:54	Naked Eye
Mercury☿	Optimal Visibility	0.4	51.0°	176°	Libra	07:56	13:29	19:03	Binoculars
Uranus♅	Below Horizon	5.6	-46.8°	335°	Taurus	19:59	02:33	09:03	Binoculars
Neptune♆	Below Horizon	7.8	-44.7°	72°	Pisces	16:27	22:28	04:33	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

RISES16:15

BEST TIME22:30S · 77° high

SETS03:56

Reaches about 77° above the horizon at its highest point.Waxing Gibbous (93% illuminated). Minimal Lunar Glare.

JupiterNaked Eye · High in the sky

RISES01:42

BEST TIME08:03S · 86° high

SETS14:23

Reaches about 86° above the horizon at its highest point.Bright golden disc; four Galilean moons easily seen in 7x50 binoculars.

SaturnNaked Eye · High in the sky

RISES16:54

BEST TIME22:57S · 74° high

SETS05:05

Reaches about 74° above the horizon at its highest point.Pale amber jewel; majestic ring system visible in any 60mm telescope.

VenusNaked Eye · High in the sky

RISES06:28

BEST TIME12:05S · 54° high

SETS17:42

Reaches about 54° above the horizon at its highest point.Brilliant dazzling beacon; visible crescent phase in small telescope.

MarsNaked Eye · High in the sky

RISES01:01

BEST TIME07:28S · 90° high

SETS13:54

Reaches about 90° 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.