Sagittarius Trivia
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50 free Sagittarius trivia questions with answers — science & nature quiz, new questions added Aug 2026.
This Sagittarius trivia quiz covers the ninth sign of the zodiac from three sides. The astrology questions ask about the archer's dates, Jupiter rulership, fire element and mutable modality, opposite sign Gemini, polarity, and the old ideas that prophets are born under it and that a centaur is a 'bestial' sign. The astronomy questions turn to the constellation that holds the centre of the Milky Way: the Teapot and the bow it used to be, Kaus Australis and Rukbat, Nunki the oldest star name, Sagittarius A* and the 2022 black hole image, the Lagoon, Trifid and Omega nebulae, Baade's Window, New Horizons and the Wow! signal. The mythology covers the Babylonian archer-god Nergal and Sumerian Pabilsag, the debate between Chiron the wise centaur and Crotus the satyr, Chiron's parentage, his pupil Asclepius, the Hydra-poisoned arrow and the immortality he traded so Prometheus could go free, plus the December birthstone. Difficulty runs from easy to expert and is shown on each question, so it works for a Sagittarius birthday, a pub quiz or an astronomy club. Every answer was checked against a reference page and each question carries its citation. Try our Zodiac, Astrology and Planets quizzes for more.
30 of 50 questions with answers and explanations. Play the quiz
Q 01Which of these Sagittarius pop stars released a song called 'The Archer' in 2019?
Taylor Swift
Taylor Swift. She named it for her own star sign and gave it track five on her album Lover, the slot she says she saves for her most vulnerable, personal songs.
Q 02Sagittarius, the ninth sign, is tied to the ninth house, which governs what?
Travel
Travel. It is the house of long journeys, and astrologers stretch that to journeys of the mind as well: philosophy, belief and higher learning.
Q 03Which planet rules Sagittarius?
Jupiter
Jupiter. The planet also gave English the word 'jovial': astrologers held that anyone born under Jove's influence was cheerful by nature.
Q 04Sagittarius belongs to which element?
Fire
Fire. Astrology tied each element to one of the four ancient temperaments, so fire signs were expected to be choleric: hot, dry and quick-tempered.
Q 05Which modality fits Sagittarius, a sign that ends a season?
Mutable
Mutable. The label comes from where a sign sits in its season, and those at the tail end are read as the zodiac's chameleons: adaptable and quick to change.
Q 06Which sign is opposite Sagittarius on the zodiac wheel?
Gemini
Gemini. It is the third sign and Sagittarius the ninth, so the two sit exactly six signs apart and face each other across the zodiac wheel.
Q 07Under the tropical zodiac the Sun is in Sagittarius between roughly which dates?
November 23 to December 21
November 23 to December 21. Tropical signs follow the seasons, not the stars: each is an equal twelfth of the Sun's yearly path, counted from the March equinox.
Q 08For most of Sagittarius season, the Sun actually sits in front of which constellation?
Ophiuchus
Ophiuchus. By today's constellation borders the Sun spends about two and a half weeks crossing the Serpent Bearer, the so-called 13th sign, before it reaches the stars of Sagittarius.
Q 09In the medieval 'Zodiac Man', which matched each sign to a body part, what did Sagittarius govern?
The thighs
The thighs. The chart ran from Aries at the top to Pisces at the bottom, and healers checked it before bloodletting, leaving a body part alone while the Moon was in its sign.
Q 10Which hero of the Trojan War was raised by the wise centaur some myths place in the sky as Sagittarius?
Achilles
Achilles. His father Peleus handed him over as a small boy, and the old teacher is said to have raised him on the innards of lions and wild boars and the marrow of bears.
Q 11Which of these signs shares the positive, or 'masculine', polarity that astrologers give Sagittarius?
Aquarius
Aquarius. Polarity simply alternates around the wheel, so every odd-numbered sign, from Aries the first to Aquarius the eleventh, counts as positive, active or yang.
Q 12What lies in the westernmost part of the constellation Sagittarius?
The centre of the Milky Way
The centre of the Milky Way. Looking that way means looking through the thickest part of our galaxy, which is why this patch of sky is so crowded with star clusters and nebulae.
Q 13The brighter stars of Sagittarius form what well-known asterism?
The Teapot
Q 21Roughly how much mass did astronomers measure for Sagittarius A* by 2022?
4.3 million Suns
4.3 million Suns. Heavy as that sounds, the giant at the heart of the galaxy M87, the first of its kind ever photographed, is more than a thousand times heavier.
Q 22The 2022 image of Sagittarius A* used a virtual telescope as wide as what?
The Earth
The Earth. Eight radio observatories across the planet worked as a single dish, sharp enough to pick out a target that looks as small as a doughnut on the Moon.
Q 23Reinhard Genzel and Andrea Ghez shared a 2020 Nobel Prize for decades spent tracking what around Sagittarius A*?
Orbiting stars
The Teapot. Its stars sketch a handle, a lid and a spout, a shape far easier to pick out than the centaur they were originally meant to draw.
Q 14Arab stargazers pictured the bright stars of Sagittarius as which desert birds?
Ostriches
Ostriches. One group of stars was a flock heading down to drink at a celestial river and another the flock coming back, with an ostrich nest pictured in a curve of stars nearby.
Q 15Sagittarius aims his arrow at the heart of the scorpion in the sky, marked by which red star?
Antares
Antares. Its name is Greek for 'rival of Ares', the war god the Romans called Mars, because the star glows as red as the planet.
Q 16Its zodiac dates fall near year's end, but in which season do northern stargazers see Sagittarius best in the evening?
Summer
Summer. Near year's end the Sun is passing through that part of the sky, so the stars of Sagittarius are lost in daylight; six months on, they own the evening.
Q 17A constellation's brightest star usually gets which Greek letter, a rule Sagittarius breaks?
Alpha
Alpha. In Sagittarius the letter went to faint Rukbat, a star too far south to be seen from northern Europe, while the true leader, Kaus Australis, is about seven times brighter.
Q 18Chinese astronomers saw six stars of Sagittarius as a southern twin of which famous northern star pattern?
The Big Dipper
The Big Dipper. China's astronomers named the group Nandou, the Southern Dipper, and Western stargazers later picked out almost the same ladle, calling it the Milk Dipper.
Q 19Which country's traditional astrology follows the stars themselves, placing Sagittarius over three weeks later than Western horoscopes do?
India
India. Vedic astrology measures against the fixed stars, which have slipped almost a whole sign since the Greek zodiac was set, so the two systems now disagree about most people's signs.
Q 20Astronomers have shown that the bright radio source Sagittarius A* is what kind of object?
A supermassive black hole
A supermassive black hole. The hole itself is completely dark: its first picture, released in 2022, shows only a shadow ringed by glowing gas whose light its gravity has bent.
Orbiting stars. One of them, S2, loops around the unseen object about every 16 years, and only an enormous mass packed into a tiny space could swing it that fast.
Q 24In the 1930s Karl Jansky traced a strange radio hiss to Sagittarius while hunting static for which company?
Bell Labs
Bell Labs. Jansky was an engineer tracking down the static that spoiled overseas radio-telephone calls; the hiss he followed to the stars became the founding discovery of radio astronomy.
Q 25Which nebula in Sagittarius, catalogued as M8, has a bright central region called the Hourglass?
The Lagoon Nebula
The Lagoon Nebula. One hot young star, Herschel 36, lights the Hourglass, and its fierce radiation blows gas away and twists the cloud into rope-like 'twisters'.
Q 26Which nebula in Sagittarius, catalogued as M20, is named for the dark lanes that split it into three lobes?
The Trifid Nebula
The Trifid Nebula. Its name is Latin for 'split in three', and it shows three kinds of nebula at once: pink glowing gas, blue reflected starlight and the dark lanes that divide it.
Q 27The nebula M17 in Sagittarius also goes by which bird's name?
The Swan Nebula
The Swan Nebula. Observers have never agreed on what its glowing shape resembles, so it is also called the Omega, the Horseshoe, the Checkmark and even the Lobster Nebula.
Q 28Astronomers searching the gas cloud Sagittarius B2 for the building blocks of life instead found a chemical that flavours which fruit?
Raspberries
Raspberries. The chemical, ethyl formate, also smells of rum; the team had spent years hunting amino acids with a radio telescope and never found them.
Q 29Baade's Window in Sagittarius is valued by astronomers because it has very little what?
Obscuring dust
Obscuring dust. Walter Baade found the clear patch in the mid-1940s with the 100-inch telescope on Mount Wilson, while trying to see deep into the galaxy.
Q 30New Horizons is leaving the Solar System toward Sagittarius after flying past which world in 2015?
Pluto
Pluto. The probe went on to pass a Kuiper Belt object named Arrokoth in 2019, and its nuclear battery will run down long before it comes near another star.