MASCARA
MASCARA (Multi-site All-Sky CAmeRA) is an exoplanet experiment by Leiden University. It has two stations, one in each hemisphere, each of which use cameras to make short exposure photographs of most of the visible sky to observe stars to a magnitude of 8.4. The Northern Hemisphere station at Roque de los Muchachos Observatory, La Palma, started observations in February 2015.
Also recorded as Multi-site All-Sky CAmeRA
MASCARA
ESO/G. J. Talens · ESO website · CC BY 4.0
- Region
- MASCARA is situated in Spain.
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Documentary summary
MASCARA (Multi-site All-Sky CAmeRA) is an exoplanet experiment by Leiden University. It has two stations, one in each hemisphere, each of which use cameras to make short exposure photographs of most of the visible sky to observe stars to a magnitude of 8.4. The Northern Hemisphere station at Roque de los Muchachos Observatory, La Palma, started observations in February 2015.
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Documentary evidence
Documentary basis
Authority files
gnd · 10320296-1 · wikidata · Q33129404
In this article
Overview
Overview
The Southern Hemisphere station at La Silla Observatory, Chile, saw first light in July 2017.
Key facts
Key facts
• Illustration — The compact housing of MASCARA at La Silla Observatory
MASCARA-1b
MASCARA-1b
On 17 July 2017, the discovery of MASCARA-1b, a confirmed superjovian exoplanet with a mass 3.7, was reported by the survey team. MASCARA-1b is a hot Jupiter transiting its parent A-type star; its orbit is misaligned with the star's rotation. The planet was found unusually reflective for hot Jupiter with the measured geometric albedo of 0.171 and dayside temperature of 3062 K. Attempts to spectroscopically characterize its composition were failing as in 2022 due to relatively high planetary surface gravity resulting in compact atmosphere.
MASCARA-2b
MASCARA-2b
A second planet, MASCARA-2b, also known as KELT-20b, was also announced in 2017. It is a hot Jupiter orbiting an A-type star. The carbon monoxide, steam and neutral iron detection in the atmosphere of MASCARA-2b was announced in 2022.
MASCARA-4b
MASCARA-4b
A planet MASCARA-4b (also known as HD 85628 Ab) discovery was announced in 2019. It is a hot Jupiter on retrograde and slightly eccentric orbit. The planet is unusually reflective for a hot Jupiter. Hydrogen, sodium, magnesium, calcium and iron emission from planetary atmosphere was detected.
MASCARA-5b
MASCARA-5b
In 2021, a planet MASCARA-5b (more commonly known as TOI-1431 b), is an Ultra-hot Jupiter. Its dayside temperature is 2,700 K (2,427 °C), making it hotter than 40% of stars in our galaxy. The nightside temperature is 2,600 K (2,300 °C).
List of discovered exoplanets
List of discovered exoplanets
• Star — Constellation — Right ascension — Declination — App. mag. — Distance (ly) — Spectral type — Planet — Mass (M J) — Radius (R J) — Orbital period (d) — Semimajor axis (AU) — Orbital eccentricity — Inclination (°) — Discovery year • MASCARA-1 — Equuleus — 8.3 — 188.7 — A8 — b — 3.7 — 1.5 — 2.14878 — 0.043 — 0 — 87 — 2017 • MASCARA-2 — Cygnus — 7.58 — 137 — A2V — b — 3.518 — 1.83 — 3.4741085 — 0.0542 — 0.0 — 86.2 — 2017 • MASCARA-3 — Ursa Major — 8.4 — 96.79 — F5 — b — 5.18 — 1.272 — 5.5514926 — 0.06971 — 89.16 — 83.11 — 2019 • MASCARA-4 — Carina — 86.7 — 171.54 — A3V — b — 3.1 — 1.53 — 2.82406 — 0.047 — 0 — 88.81 — 2019 • MASCARA-5 — Cepheus — 8 — 149.6 — AmC — b — 3.14 — 1.508 — 2.65022 — 0.047 — 0.01 — 80.4 — 2021
Papers
Papers
• G.J.J. Talens et al., The Multi-site All-Sky CAmeRA: Finding transiting exoplanets around bright (m V < 8) stars, accepted for publication in A&A
Places
Named by the record
Places
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MASCARA is situated in Spain.
Country
MASCARA is situated in Chile.
Country
MASCARA is associated with Spain and Chile.
Country
Primary material
Documents and archives
authority file
- Gemeinsame Normdatei 10320296-1, Mascara.
General reference · Deutsche Nationalbibliothek
reference work
- Wikidata, structured authority record Q33129404: MASCARA
Reputable secondary · Wikidata
Literature
Scholarly footprint
A count of publications is evidence of attention, not of standing, and is given here only as a measure.
Citations
References
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authority file
Gemeinsame Normdatei 10320296-1, Mascara.Deutsche Nationalbibliothek
Secondary witnessreference work
Secondary witness
The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 16 August 2026.
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