OBSERVATORY ALMANAC · NOCTURNAL DISPATCH

Tonight under the Sky

25.70°N, 108.81°WAmerica/Mazatlan

Daylight+35.0°

09:13:11

Fri, Oct 23, 2026

PHOTOMETRIC TWILIGHT SPECTRUM10h 4m of true darkness · 12h 38m total night

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

TRUE DARK SKY WINDOW

Sunset17:40

Civil Dusk18:03

Nautical18:30

Full Dark18:57

Nadir23:59

Dark Ends05:01

Nautical05:28

Civil Dawn05:55

Sunrise06:18

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-61.2°

DISTANCE380,374 km

Moonrise16:02

Moonset03:44

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/Mazatlan

PLANET	STATUS	MAGNITUDE	ALTITUDE	AZIMUTH	CONSTELLATION	RISE	TRANSIT	SET	EQUIPMENT
Venus♀	Optimal Visibility	-4.3	31.6°	134°	Libra	06:27	11:52	17:17	Naked Eye
Jupiter♃	Optimal Visibility	-2.0	67.5°	244°	Leo	01:20	07:50	14:20	Naked Eye
Saturn♄	Below Horizon	0.3	-54.4°	316°	Pisces	16:40	22:49	04:53	Naked Eye
Mars♂	Optimal Visibility	1.0	61.7°	260°	Cancer	00:37	07:15	13:53	Naked Eye
Mercury☿	Visible Low	0.4	14.7°	122°	Libra	07:57	13:16	18:36	Binoculars
Uranus♅	Below Horizon	5.6	-1.7°	295°	Taurus	19:32	02:20	09:04	Binoculars
Neptune♆	Below Horizon	7.8	-60.1°	326°	Pisces	16:14	22:19	04:20	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

RISES16:02

BEST TIME21:34S · 62° high

SETS03:44

Reaches about 62° above the horizon at its highest point.Waxing Gibbous (92% illuminated). Minimal Lunar Glare.

JupiterNaked Eye · High in the sky

RISES01:20

BEST TIME07:50S · 79° high

SETS14:20

Reaches about 79° above the horizon at its highest point.Bright golden disc; four Galilean moons easily seen in 7x50 binoculars.

SaturnNaked Eye · High in the sky

RISES16:40

BEST TIME22:49S · 66° high

SETS04:53

Reaches about 66° above the horizon at its highest point.Pale amber jewel; majestic ring system visible in any 60mm telescope.

VenusNaked Eye · High in the sky

RISES06:27

BEST TIME11:52S · 46° high

SETS17:17

Reaches about 46° above the horizon at its highest point.Brilliant dazzling beacon; visible crescent phase in small telescope.

MarsNaked Eye · High in the sky

RISES00:37

BEST TIME07:15S · 82° high

SETS13:53

Reaches about 82° 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.