<system>
	<name>Gamma Leonis</name>
	<rightascension>10 19 58.427</rightascension>
	<declination>+19 50 28.53</declination>
	<distance errorminus="1.2" errorplus="1.2">38.5</distance>
	<binary>
		<name>Gamma Leonis</name>
		<name>gam Leo</name>
		<name>γ Leonis</name>
		<name>γ Leo</name>
		<name>41 Leonis</name>
		<name>41 Leo</name>
		<name>Algieba</name>
		<name>Al Gieba</name>
		<name>HIP 50583</name>
		<name>BD+20 2467</name>
		<name>WDS J10200+1950</name>
		<name>STF 1424</name>
		<separation unit="arcsec">4.60</separation>
		<separation errorminus="6" errorplus="6" unit="AU">177</separation>
		<positionangle>127</positionangle>
		<star>
			<name>Gamma-1 Leonis</name>
			<name>gamma 1 Leo</name>
			<name>gam01 Leo</name>
			<name>γ1 Leo</name>
			<name>γ1 Leonis</name>
			<name>γ Leo A</name>
			<name>Gamma Leonis A</name>
			<name>gamma Leo A</name>
			<name>gam Leo A</name>
			<name>Algieba A</name>
			<name>Al Gieba A</name>
			<name>HD 89484</name>
			<name>HIP 50583 A</name>
			<name>TYC 1423-1349-1</name>
			<name>SAO 81298</name>
			<name>BD+20 2467 A</name>
			<name>WDS J10200+1950 A</name>
			<name>STF 1424 A</name>
			<mass errorminus="0.21" errorplus="0.21">1.23</mass>
			<radius errorminus="1.61" errorplus="1.61">31.88</radius>
			<magV>2.01</magV>
			<magB>3.13</magB>
			<temperature errorminus="15" errorplus="15">4330</temperature>
			<metallicity errorminus="0.05" errorplus="0.05">-0.51</metallicity>
			<spectraltype>K0III</spectraltype>
			<planet>
				<name>Gamma Leonis b</name>
				<name>gamma 1 Leo b</name>
				<name>gam 1 Leo b</name>
				<name>Algieba A b</name>
				<name>Al Gieba A b</name>
				<list>Confirmed planets</list>
				<mass errorminus="1.0" errorplus="1.0" type="msini">8.78</mass>
				<period errorminus="1.25" errorplus="1.25">428.5</period>
				<semimajoraxis errorminus="0.02" errorplus="0.02">1.19</semimajoraxis>
				<eccentricity errorminus="0.046" errorplus="0.046">0.144</eccentricity>
				<periastron errorminus="9.2" errorplus="9.2">206.7</periastron>
				<periastrontime errorminus="13.5" errorplus="13.5">2451236</periastrontime>
				<inclination errorminus="98.6" errorplus="3.8">172.1</inclination>
				<ascendingnode errorminus="82.2" errorplus="73.6">157.4</ascendingnode>
				<discoverymethod>RV</discoverymethod>
				<lastupdate>15/09/22</lastupdate>
				<discoveryyear>2009</discoveryyear>
				<list>Planets in binary systems, S-type</list>
			</planet>
		</star>
		<star>
			<name>Gamma-2 Leonis</name>
			<name>gamma 2 Leo</name>
			<name>gam02 Leo</name>
			<name>γ2 Leo</name>
			<name>γ2 Leonis</name>
			<name>γ Leo B</name>
			<name>Gamma Leonis B</name>
			<name>gamma Leo B</name>
			<name>gam Leo B</name>
			<name>41 Leonis B</name>
			<name>41 Leo B</name>
			<name>Algieba B</name>
			<name>Al Gieba B</name>
			<name>HD 89485</name>
			<name>HIP 50583 B</name>
			<name>TYC 1423-1349-2</name>
			<name>SAO 81299</name>
			<name>BD+20 2467 B</name>
			<name>WDS J10200+1950 B</name>
			<name>STF 1424 B</name>
			<magB>3.4</magB>
			<magV errorminus="0.011" errorplus="0.011">4.225</magV>
			<magR>2.2</magR>
			<spectraltype>G7IIIb</spectraltype>
		</star>
	</binary>
	<videolink>http://youtu.be/SmrgjErcQRc</videolink>
	<constellation>Leo</constellation>
</system>
