What's the difference between leo and sextans?

Leo

Definition:

(n.) The Lion, the fifth sign of the zodiac, marked thus [/] in almanacs.
(n.) A northern constellation east of Cancer, containing the bright star Regulus at the end of the handle of the Sickle.

Example Sentences:

(1) Once out of the army, he took the advice of Leo Amery that it cost money to have principles in politics, and set about amassing some.
(2) The TV campaign, created by ad agency Leo Burnett, uses imagery and motifs more closely associated with Christmas than summer.
(3) Boy, a new play by Leo Butler , follows Liam, a 17-year-old Neet (not in education, employment or training) for 24 hours as he wanders the capital, trying to find friends, connect with a family who have given up on him and with community services that communicate so differently from the way Liam does, it seems like they are speaking another language.
(4) The group comprised 29 pumas (Felis concolor), 32 lions (Panthera leo), 27 tigers (P tigris), 19 leopards (P pardus), 18 jaguars (P onca) and 22 cheetahs (Acinonyx jubatus).
(5) Leo Gerard, international president of the USW steelworkers' union, said the weak yuan risked allowing China to dominate the emerging green technology sector.
(6) Effects of the K+ channel blocking agent, glyburide, on the actions of two K+ channel openers, BRL 34915 (cromakalim) and P 1060 (Leo), a potent pinacidil derivative (N-(t-butyl)-N"-cyano-N'-3-pyridyl-guanidine), were ascertained.
(7) Here’s the judge in full flight : ‘Speak for England!’ cried out Leo Amery, and the Attorney-General for the State of Victoria seems to have decided to speak not just for Victoria, but for all Australia.
(8) O’Brien’s successor as archbishop of St Andrews and Edinburgh, Leo Cushley, said: “I am confident that the decision of the Holy Father is fair, equitable and proportionate.
(9) The idea of writing this book came to me while doing research for an educational pack on Holocaust art and I came across a series of prints by Leo Haas.
(10) The results of these measurements are used to calculate the aromatic fragment constants pi HC = N(O)C6H5, pi C = N----O, fHC = N(O), and fC = N----O for the group contribution methods of Hansch and Leo.
(11) In 1908, while at The Mount Sinai Hospital, Dr. Leo Buerger described a clinical entity with its histologic counterpart that soon became known as "Buerger's disease."
(12) Former student strike leader Leo Bureau-Blouin, 20, was elected in his district of Laval for the PQ, making him the youngest elected to the national assembly.
(13) The evaluation of a traffic safety campaign called "Leo Lässig", addressed to young new drivers, shows that recognition and acceptance by the target group were stimulated by the age-conform means of comic-strips.
(14) Six circus lions (Panthera leo) showed neurological and gastrointestinal signs after consuming casualty broiler chickens.
(15) She tweeted a quote from Leo Buscaglia , the late writer and motivational speaker known as Dr Love: "The easiest thing to be in the world is you, the most difficult thing to be is what other people want you to be."
(16) Leo Mel 3 did not react with a variety of carcinomas, lymphomas, leukemias, and other neuroectodermal tumors, nor with adult or fetal tissues, except fetal liver.
(17) Prednimustine (Leo 1031), a conjugate of prednisolone and chlorambucil, was administered to humans and baboons and the metabolic fate of the compound ascertained.
(18) No.” As it is, Gareth Bale’s untimely buttock injury and Suárez’s lack of match fitness have postponed the ultimate in forward-line set-tos, but this is still Leo Messi against Cristiano Ronaldo, Neymar against Karim Benzema, with Suárez, James Rodríguez, Ivan Rakitic and Toni Kroos all entering the frenzy for the first time.
(19) Armillifer armillatus, Linguatula serrata and L. nuttalli have each been isolated from nine different mammalian species in the Kruger National Park: lion, Panthera Leo; Leopard, P. pardus; buffalo, Syncerus caffer: blue wildebeest, Connechaetes taurinus; giraffe, Girraffa camelopardalis; kudu, Tragelophus strepsiceros; waterbuck, Kobus ellipsyprymnus; tsessebe, Damaliscus iunatus and impala, Aepyceros melampus.
(20) Aston Villa midfielder Barry Bannan and Reading defender Adrian Mariappa have done medicals with Palace this morning and the south London club are also trying to prise Liam Bridcutt and Leo Ulloa away from Brighton.