OBSERVATORY ALMANAC · NOCTURNAL DISPATCH

Tonight under the Sky

7.14°S, 38.73°WAmerica/Sao_Paulo

Daylight+46.2°

14:15:54

Fri, Oct 23, 2026

PHOTOMETRIC TWILIGHT SPECTRUM9h 19m of true darkness · 11h 41m total night

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

TRUE DARK SKY WINDOW

Sunset17:28

Civil Dusk17:49

Nautical18:14

Full Dark18:39

Nadir23:19

Dark Ends03:58

Nautical04:23

Civil Dawn04:48

Sunrise05:09

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-15.7°

DISTANCE380,139 km

Moonrise15:20

Moonset02:56

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/Sao_Paulo

PLANET	STATUS	MAGNITUDE	ALTITUDE	AZIMUTH	CONSTELLATION	RISE	TRANSIT	SET	EQUIPMENT
Venus♀	Optimal Visibility	-4.3	44.0°	252°	Libra	05:02	11:13	17:23	Naked Eye
Jupiter♃	Below Horizon	-2.0	-17.2°	283°	Leo	01:13	07:10	13:04	Naked Eye
Saturn♄	Below Horizon	0.3	-27.2°	92°	Pisces	16:04	22:05	04:10	Naked Eye
Mars♂	Below Horizon	1.0	-25.6°	286°	Cancer	00:41	06:35	12:28	Naked Eye
Mercury☿	Optimal Visibility	0.4	62.4°	237°	Libra	06:24	12:37	18:49	Binoculars
Uranus♅	Below Horizon	5.6	-73.4°	32°	Taurus	19:46	01:36	07:31	Binoculars
Neptune♆	Below Horizon	7.8	-19.5°	93°	Pisces	15:34	21:35	03:41	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

RISES15:20

BEST TIME21:30N · 79° high

SETS02:56

Reaches about 79° above the horizon at its highest point.Waxing Gibbous (92% illuminated). Minimal Lunar Glare.

JupiterNaked Eye · High in the sky

RISES01:13

BEST TIME07:10N · 69° high

SETS13:04

Reaches about 69° above the horizon at its highest point.Bright golden disc; four Galilean moons easily seen in 7x50 binoculars.

SaturnNaked Eye · High in the sky

RISES16:04

BEST TIME22:05N · 82° high

SETS04:10

Reaches about 82° above the horizon at its highest point.Pale amber jewel; majestic ring system visible in any 60mm telescope.

VenusNaked Eye · High in the sky

RISES05:02

BEST TIME11:13S · 79° high

SETS17:23

Reaches about 79° above the horizon at its highest point.Brilliant dazzling beacon; visible crescent phase in small telescope.

MarsNaked Eye · High in the sky

RISES00:41

BEST TIME06:35N · 65° high

SETS12:28

Reaches about 65° 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.