OBSERVATORY ALMANAC · NOCTURNAL DISPATCH

Tonight under the Sky

7.01°S, 37.95°WAmerica/Fortaleza

Daylight+36.6°

14:52:16

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

Sunset17:25

Civil Dusk17:46

Nautical18:11

Full Dark18:36

Nadir23:15

Dark Ends03:55

Nautical04:20

Civil Dawn04:45

Sunrise05:06

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-6.2°

DISTANCE380,003 km

Moonrise15:17

Moonset02:53

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/Fortaleza

PLANET	STATUS	MAGNITUDE	ALTITUDE	AZIMUTH	CONSTELLATION	RISE	TRANSIT	SET	EQUIPMENT
Venus♀	Optimal Visibility	-4.3	34.6°	253°	Libra	04:59	11:09	17:19	Naked Eye
Jupiter♃	Below Horizon	-2.0	-26.9°	283°	Leo	01:09	07:07	13:01	Naked Eye
Saturn♄	Below Horizon	0.3	-17.3°	91°	Pisces	16:01	22:02	04:06	Naked Eye
Mars♂	Below Horizon	1.0	-35.0°	287°	Cancer	00:38	06:32	12:25	Naked Eye
Mercury☿	Optimal Visibility	0.4	53.8°	244°	Libra	06:21	12:34	18:46	Binoculars
Uranus♅	Below Horizon	5.6	-66.6°	51°	Taurus	19:42	01:33	07:28	Binoculars
Neptune♆	Below Horizon	7.8	-9.7°	92°	Pisces	15:31	21:32	03:38	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

RISES15:17

BEST TIME21:26N · 79° high

SETS02:53

Reaches about 79° above the horizon at its highest point.Waxing Gibbous (93% illuminated). Minimal Lunar Glare.

JupiterNaked Eye · High in the sky

RISES01:09

BEST TIME07:07N · 69° high

SETS13:01

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

RISES16:01

BEST TIME22:02N · 82° high

SETS04:06

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

RISES04:59

BEST TIME11:09S · 79° high

SETS17:19

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

RISES00:38

BEST TIME06:32N · 65° high

SETS12:25

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.