OutgoingIncoming

🌟We've simplified our design for better navigation!

Table of Contents

1. 18 relations: A-type main-sequence star, Apparent magnitude, Constellation, Effective temperature, Fraunhofer lines, Hydrogen spectral series, Lacerta, Light-year, Metallicity, Monthly Notices of the Royal Astronomical Society, Photosphere, Radial velocity, Solar luminosity, Solar mass, Solar radius, Star, Stellar classification, Stellar rotation.

2. Lacerta

A-type main-sequence star

An A-type main-sequence star (A) or A dwarf star is a main-sequence (hydrogen burning) star of spectral type A and luminosity class (five). 9 Lacertae and a-type main-sequence star are a-type main-sequence stars.

See 9 Lacertae and A-type main-sequence star

Apparent magnitude

Apparent magnitude is a measure of the brightness of a star or other astronomical object.

See 9 Lacertae and Apparent magnitude

Constellation

A constellation is an area on the celestial sphere in which a group of visible stars forms a perceived pattern or outline, typically representing an animal, mythological subject, or inanimate object.

See 9 Lacertae and Constellation

Effective temperature

The effective temperature of a body such as a star or planet is the temperature of a black body that would emit the same total amount of electromagnetic radiation.

See 9 Lacertae and Effective temperature

Fraunhofer lines

The Fraunhofer lines are a set of spectral absorption lines.

See 9 Lacertae and Fraunhofer lines

Hydrogen spectral series

The emission spectrum of atomic hydrogen has been divided into a number of spectral series, with wavelengths given by the Rydberg formula.

See 9 Lacertae and Hydrogen spectral series

Lacerta

Lacerta is one of the 88 modern constellations defined by the International Astronomical Union.

See 9 Lacertae and Lacerta

Light-year

A light-year, alternatively spelled light year (ly or lyr), is a unit of length used to express astronomical distances and is equal to exactly 9,460,730,472,580.8 km (Scientific notation: 9.4607304725808 × 1012 km), which is approximately 5.88 trillion mi.

See 9 Lacertae and Light-year

Metallicity

In astronomy, metallicity is the abundance of elements present in an object that are heavier than hydrogen and helium.

See 9 Lacertae and Metallicity

Monthly Notices of the Royal Astronomical Society

Monthly Notices of the Royal Astronomical Society (MNRAS) is a peer-reviewed scientific journal in astronomy, astrophysics and related fields.

See 9 Lacertae and Monthly Notices of the Royal Astronomical Society

Photosphere

The photosphere is a star's outer shell from which light is radiated.

See 9 Lacertae and Photosphere

Radial velocity

The radial velocity or line-of-sight velocity of a target with respect to an observer is the rate of change of the vector displacement between the two points.

See 9 Lacertae and Radial velocity

Solar luminosity

The solar luminosity is a unit of radiant flux (power emitted in the form of photons) conventionally used by astronomers to measure the luminosity of stars, galaxies and other celestial objects in terms of the output of the Sun.

See 9 Lacertae and Solar luminosity

Solar mass

The solar mass is a standard unit of mass in astronomy, equal to approximately.

See 9 Lacertae and Solar mass

Solar radius

Solar radius is a unit of distance used to express the size of stars in astronomy relative to the Sun.

See 9 Lacertae and Solar radius

Star

A star is a luminous spheroid of plasma held together by self-gravity.

See 9 Lacertae and Star

Stellar classification

In astronomy, stellar classification is the classification of stars based on their spectral characteristics.

See 9 Lacertae and Stellar classification

Stellar rotation

Stellar rotation is the angular motion of a star about its axis.

See 9 Lacertae and Stellar rotation

See also

Lacerta

• 1 Lacertae
• 10 Lacertae
• 11 Lacertae
• 12 Lacertae
• 14 Lacertae
• 15 Lacertae
• 16 Lacertae
• 2 Lacertae
• 3C 449
• 3C 452
• 4 Lacertae
• 5 Lacertae
• 6 Lacertae
• 9 Lacertae
• ADS 16402
• Alpha Lacertae
• BL Lacertae
• Beta Lacertae
• CP Lacertae
• DI Lacertae
• DK Lacertae
• EV Lacertae
• EW Lacertae
• HAT-P-1b
• HD 211073
• Lacerta
• Lacerta in Chinese astronomy
• List of stars in Lacerta
• NGC 7209
• NGC 7243
• NGC 7250
• Sceptrum et Manus Iustitiae
• U Lacertae
• V424 Lacertae

References

[1] https://en.wikipedia.org/wiki/9_Lacertae

Also known as 9 Lac.

Unionpedia is a concept map or semantic network organized like an encyclopedia – dictionary. It gives a brief definition of each concept and its relationships.

This is a giant online mental map that serves as a basis for concept diagrams. It's free to use and each article or document can be downloaded. It's a tool, resource or reference for study, research, education, learning or teaching, that can be used by teachers, educators, pupils or students; for the academic world: for school, primary, secondary, high school, middle, technical degree, college, university, undergraduate, master's or doctoral degrees; for papers, reports, projects, ideas, documentation, surveys, summaries, or thesis. Here is the definition, explanation, description, or the meaning of each significant on which you need information, and a list of their associated concepts as a glossary. Available in English, Spanish, Portuguese, Japanese, Chinese, French, German, Italian, Polish, Dutch, Russian, Arabic, Hindi, Swedish, Ukrainian, Hungarian, Catalan, Czech, Hebrew, Danish, Finnish, Indonesian, Norwegian, Romanian, Turkish, Vietnamese, Korean, Thai, Greek, Bulgarian, Croatian, Slovak, Lithuanian, Filipino, Latvian, Estonian and Slovenian. More languages soon.

The information is based on Wikipedia articles and other Wikimedia projects, and it's available under the Creative Commons Attribution-ShareAlike License.

Unionpedia is not endorsed by or affiliated with the Wikimedia Foundation.

Google Play, Android and the Google Play logo are trademarks of Google Inc.

Privacy Policy